Grand New Material (Shenzhen) Co., Ltd.

Does a car stereo need an amplifier and how to choose the right amplifier for you

Does a car stereo need an amplifier?   Whether it is necessary to install a power amplifier in the car depends on the needs and expectations of the individual car audio system, the following are some factors to consider:   First, if there are the following circumstances, it is necessary to install the power amplifier   Go for high volume and strong sound If you often listen to music with a strong sense of rhythm in the car, such as rock, electronic music, etc., and want the music to have enough volume and impact, then the power amplifier is a good choice. For example, when you are on a long drive and want to stay awake or enjoy the driving atmosphere through loud music, the power amplifier can provide more power than the original car sound system. Generally, the power of the original car audio system is limited, like the car audio power of an ordinary economic car may be about 10-20 watts/channel, and the external power amplifier can easily reach several hundred watts/channel, which can make the music more powerful.   Upgraded speakers If you replace high-quality car speakers, these speakers tend to require more power to perform at their best. For example, you install advanced package speakers, which include specialized tweeters (such as silk film tweeters) and mid-woofers, which are designed for better sound quality performance, but usually have higher power requirements. At this point, the internal power amplifier of the original car may not provide enough power to drive these speakers, and the external power amplifier can meet its power needs, allowing the speaker to fully play, showing clear treble, full midrange and deep bass.   High requirements for sound quality (e.g. audiophiles) For those who seek the ultimate sound quality, power amplifiers can provide a significant boost. A good power amplifier has a higher signal-to-noise ratio, which means less background noise when amplifying the audio signal. For example, when playing classical music, you can more pure restore the sound of the instrument, so that you can hear the delicate timbre of the violin and the rich harmony of the piano, reducing the noise caused by insufficient power or signal interference. Moreover, the power amplifier can also provide more accurate sound adjustment functions, such as more fine gain control, frequency division Settings and balance adjustment. Through these adjustments, different frequency bands of sound (treble, midrange, bass) can be more accurately allocated to the corresponding speaker, thus creating a more personal auditory preferences, balanced and high-quality sound environment. Second, if it is the following circumstances, it may not be necessary to install power amplifier for the time being   Car audio requirements are not high If you only occasionally listen to the radio or do not have particularly high requirements for music quality, just for simple information acquisition or light music appreciation, the original car comes with a sound system and its built-in power amplifier can meet the basic needs. For example, just listen to the traffic radio to understand the road information, or listen to the pop music radio, the sound quality and volume are not too high pursuit of the case, there is no need to install additional power amplifier. Limited budget Installation of power amplifier is not only the cost of purchasing power amplifier equipment itself, but also may involve installation costs, including wiring, debugging and other links. If the budget is tight, then you can not consider the installation of the amplifier, but use the funds for other necessary maintenance or upgrade projects of the vehicle.   How to choose the right amplifier for you?   Choosing the right car amplifier for you, you need to consider a number of factors, the following are some key points:   First, power matching   Determine speaker power requirements First of all, we must understand the power parameters of the car speaker. The rated power (RMS) and maximum power are usually labeled on the speaker. For example, a set of car speakers is rated at 50 watts/channel, and the maximum power may reach 100 watts/channel. In general, the output power of the amplifier should be matched with the rated power of the speaker, which can ensure that the speaker is within the normal working range, and avoid thin sound due to insufficient power, or excessive power damage to the speaker. If you plan to upgrade the speaker later, you also need to take this into account and choose a slightly higher power amplifier to adapt to possible future upgrades.   Consider vehicle space and volume requirements   The size of the interior space of the vehicle has certain requirements for the power amplifier. Larger vehicles, such as SUVs, MPVS, etc., due to the large space inside the car, the sound is easily absorbed and dispersed during the propagation process, so it may need a larger power amplifier to achieve sufficient volume. The relatively small space of small cars, the required power can be slightly smaller. If you often drive in noisy environments such as highways and like to listen to music at a higher volume, you also need to choose a larger power amplifier. For example, when driving at high speed, wind noise, tire noise and other interference is large, and the power amplifier can make the music more clear and audible. Second, the number of channels   Select based on speaker configuration If the car audio system is a basic stereo configuration, that is, there are two speakers at the front door, then choosing a 2-channel amplifier can meet the needs. This power amplifier can provide independent power output for the speakers of the left and right channels, ensuring sound balance between the left and right channels.   However, if a multi-channel sound system is installed, such as adding a rear door speaker, a central speaker or a subwoofer, the corresponding multi-channel amplifier is required. For example, for a 5.1 channel system (including front left and right speakers, rear left and right speakers, center speakers, and subwoofers), you need a 5 channel or 6 channel (if the subwoofer needs a separate channel) amplifier to match.   Consider upgrade scalability Even if the current sound system is relatively simple, if you plan to add more speakers in the future, such as surround speakers or multiple subwoofers, it is best to choose a power amplifier with a large number of channels and scalability. In this way, the power amplifier does not need to be replaced during the upgrade, saving costs. Three, sound quality characteristics  

How to upgrade the Volkswagen Golf Electronics

Click for product details   The electronic part of the Volkswagen Golf upgrade mainly includes the following aspects:   Car navigation system upgrade   Download updates: Determine the navigation software brand and download the latest map data from the corresponding brand's official website. Such as the Autonavi map version, etc., the downloaded map data is placed in the corresponding position of the navigator's storage card. Online upgrade: If the vehicle navigation system supports online update, you can directly enter the navigation software operation interface, click the upgrade button in the Settings, and wait for the download and installation. Usb flash drive upgrade: Download the upgrade patch package from the official website, put it into the USB flash drive, insert the USB flash drive into the USB flash drive slot next to the LCD screen, and then open the file manager in the LCD screen, find the installation file on the USB flash drive, and click "Install".   Entertainment system upgrade Software update: Through the vehicle's central control system or connect to the mobile phone hotspot, enter the app store, update music, video and other entertainment applications, to get a better use experience and more functions. Audio system upgrade: You can replace higher quality speakers, add power amplifier or subwoofer and other equipment to improve the sound effect. At the same time, the software of the sound system can also be adjusted to optimize the sound quality. Dashboard upgrade Full liquid crystal instrument modification: some golf models can upgrade the traditional mechanical instrument panel to full liquid crystal instrument, such as 7 generation golf can be achieved by replacing the original factory or suitable full liquid crystal instrument kit, which can display more abundant vehicle information and enhance the sense of technology of the vehicle. Instrument firmware upgrade: Pay attention to the official instrument firmware update released by Volkswagen, and update the instrument firmware through professional equipment or specific upgrade procedures to fix vulnerabilities, improve performance or add new features. Vehicle computer system upgrade   ECU upgrade: First-order program upgrade: The professional modification shop can reprogram the engine control unit (ECU) through the OBD interface or by removing the ECU computer board, and write the first-order upgrade program to improve the power output of the engine, such as increasing horsepower, torque, etc. Generally, naturally aspirated engines can increase the power of about 10%-15%, and turbocharged engines can increase the power of about 20%-40%. Customized program upgrade: Some professional ECU tuning companies will customize personalized ECU programs for vehicles according to the specific conditions of the vehicle, such as the oil used, the hardware configuration of the vehicle, the driving habits of the owner, etc., to further optimize the engine performance, improve the shift stop, and improve the throttle response speed. TCU upgrade: The upgrade of the transmission control unit (TCU) can optimize the shift logic of the gearbox, make the shift smoother and faster, improve transmission efficiency, and improve the acceleration performance and fuel economy of the vehicle.   Vehicle system upgrade System software update: Volkswagen will release software updates of the vehicle system from time to time, which can be updated online through the "System Update" option in the vehicle's central control setting menu, or downloaded from the official website of Volkswagen and updated locally using the U disk to repair system vulnerabilities, improve system stability, and add new functions. Hardware upgrade: If you are not satisfied with the performance of the car, you can replace the car host with a higher configuration, such as a faster processor, larger memory and higher resolution screen, to improve the running speed and display effect of the car.   What are the options for the VW Golf center control screen upgrade?   Original upgrade Center control screen of high-equipped models: If your golf is a low-equipped model, you can consider replacing it with the original center control screen of high-equipped models. For example, the golf 8 can be equipped with an optional 10-inch center control screen, and the top is a 10-inch center control screen. This upgrade method has a good performance in compatibility and stability, and can perfectly match with other systems of the vehicle to achieve rich functions such as vehicle information display, multimedia entertainment, navigation and so on. Upgrade the original MIB host: such as Golf 7 can upgrade the MIB275 series host, the host screen has 9.2 inches, full touch glass screen, resolution and feel have been improved. In terms of function, in addition to supporting common functions such as Bluetooth, usb, mobile phone mapping, and lossless audio playback, it also has practical functions such as synchronous display of instrument information, ops follow-up track, and ops reversing image display on the same screen, and 275c also supports LCD instrument map projection and Dana speaker. Third party brand modification Feig: Feig brand center control screen products are reliable in quality and rich in functions. The interface design is simple and beautiful, the operation is convenient and smooth, and the sound quality is good. Some models support high-definition reverse image, Bluetooth connection, navigation functions, etc., which can meet the owners' daily use needs. Desay Siway: As the leading automotive electronics brand in China, Desay Siway provides a variety of suitable center control screen products for mass models. Its advantage is that it has good system compatibility with mass vehicles and can achieve seamless docking. The product is excellent in terms of stability and durability, but also has a wealth of features, such as support for multiple audio and video formats, vehicle information display, mobile phone interconnection, and so on. Tuxin or Jiesuda: These two brands may provide a wider range of control screen size options, according to personal preferences and the actual situation of the vehicle to choose the right size of the screen for modification, but pay attention to choose the product that matches the size of the vehicle to ensure the beauty and convenience of installation. Android One large screen: There are many general purpose Android one large screen on the market to choose from, and its advantage is that it is powerful and has a high degree of customization. Generally equipped with an intelligent operating system, you can install a variety of applications like using a smart phone, such as navigation software, music player software, video player software, etc., to meet the different personalized needs of the owner, but pay attention to product quality and compatibility.

How to choose a good Android car.

Click here for product details   Here are some key points to choosing a good Android car: Hardware performance Processor and memory: The processor is the core of the car, affecting the speed and multitasking ability of the system. Common Qualcomm, Mediatek and other brands of chips, such as Qualcomm Snapdragon 665 and above models, can better meet the needs of daily use, ensure the smooth operation of the system, reduce the phenomenon of congestion. Memory includes running memory and storage memory. The recommended running memory is 2GB or higher, and the storage memory is 16GB or higher to ensure that multiple applications can be run at the same time and provide sufficient storage space for data such as maps, music, and videos. Screen quality: The screen size should be selected according to the space of the vehicle console and personal visual preferences, generally 7-10 inches is more common. The screen resolution should reach at least 1024×600 pixels to ensure the clarity of images and text, and the resolution of full HD (1920×1080 pixels) and above can provide more delicate visual effects. In addition, the material of the screen is also very important, capacitive screen touch sensitivity is high, fast response, is the current mainstream choice of car screen.   GPS module: Accurate positioning is essential for navigation functions. A high-quality vehicle should be equipped with a high-performance GPS module, which can quickly and accurately locate the position of the vehicle, the star search speed is fast and the signal is stable, and the signal loss or positioning deviation is not easy even in complex road conditions and environments. Systems and software Android versions: Newer versions of Android generally have better performance optimizations, more features, and greater compatibility. At present, Android 10.0 and above version is more ideal, and it has better performance in security, stability and support for new applications, but it is also necessary to pay attention to the optimization and adaptation of the system by the car manufacturer. Application compatibility: A good Android car should be well compatible with all kinds of commonly used Android applications, such as navigation software such as Amap and Baidu Map, as well as music playing software such as QQ music and Kugou music, so as to meet the diversified needs of users in navigation and entertainment. System stability: The vehicle system needs to run steadily for a long time to avoid problems such as crash, restart, and software crash. You can understand the stability of the vehicle system by viewing user evaluation, product evaluation and other ways, and choose products with good reputation and market testing. Functional configuration Navigation function: Accurate navigation is one of the core functions of the car. The car should have built-in professional navigation software, such as Autonavi car version, Baidu Map car version, etc., and support real-time road updates, voice navigation, path planning and other functions, so as to facilitate users to quickly and accurately reach the destination during the driving process. Multimedia function: Support a variety of audio and video formats, such as MP3, APE, FLAC, MP4, AVI, etc., so that users can enjoy their favorite music and video in the car. At the same time, it has a Bluetooth connection function, which can be easily paired with mobile phones and other devices to achieve music playback, phone answering and other operations. Voice interaction function: Excellent voice interaction function allows users to operate the vehicle more safely and conveniently during driving. The car should support voice wake up, voice control navigation, music playback, telephone dialing and other functions, and the voice recognition accuracy rate should be high, and the response speed should be fast. Reversing image and tachograph function: If the car supports the reversing image function, it should have a high-definition camera and a fast image switching speed, which can clearly show the situation behind the vehicle and provide a powerful assistance for reversing. Some vehicles are also integrated with the tachograph function, which can record the video picture during the driving process and provide evidence for accident treatment. Product quality and after-sales Brand and reputation: Choose well-known brands and good reputation of the car machinery products, quality and after-sales service is more guaranteed. Such as Feig, Desai Siwei, Cassida and other brands, in the market has a high visibility and user recognition. Product workmanship: The high-quality car machine is more fine in workmanship, the appearance design is beautiful and generous, and matches the interior of the vehicle, the key layout is reasonable, and the operation is convenient. At the same time, the material of the car should have good durability and corrosion resistance, and can be used stably in the complex environment of the car for a long time. After-sales service: Good after-sales service is an important factor to consider when purchasing a car. Automotive products generally have a certain warranty period, and quality problems can be repaired or replaced in time during the warranty period. In addition, some brands also provide perfect after-sales customer service and technical support, so that users can get timely solutions when they encounter problems in the process of use.

Does the new motorcycle have CarPlay function?

Click here for product details   New motorcycles have CarPlay function, the following are some new motorcycles with this function:   Honda: 2018 and later Gold Wing, Gold Wing DCT, Gold Wing Tour, Gold Wing Tour DCT and other models are equipped with Apple CarPlay integration, which allows users to access maps, music and other apps on the phone through the motorcycle's display.   Indian Motorcycle: Some 2020 and 2021 models are starting to support CarPlay, including the standard Chieftain, Roadmaster and Indian Challenger bikes, whose new 2021 Chieftain Elite comes with a 7-inch built-in display, Available in conjunction with CarPlay, riders can check weather and traffic coverage through the connected service.   Bombardier: The Pulse and Origin electric motorcycles, owned by Bombardier's sub-brand Can-Am, both feature 10.25-inch touch screens, built-in Apple CarPlay navigation and the ability to connect to mobile apps.   Infinite Machine: The brand's modular single-chassis electric motorcycle P1 is the first of its kind to be equipped with wireless Apple CarPlay and Android Auto.   Spring Breeze 800NK: The 2024 Spring Breeze 800NK is divided into TC version and Lingxi + version, of which the Lingxi + version has an 8-inch curved screen instrument, supports Apple CarPlay function, and the price starts from 49,580 yuan.   Spring 800MT: Spring 800MT Adventure Edition is equipped with 8-inch HD fully fitted LCD meter, and its built-in intelligent interaction center can support wireless CarPlay, as well as Bluetooth phone, front and back call function.   What is the experience of the new motorcycle CarPlay function?   Visual experience Screen display effect: the screen size and display quality of different models vary. For example, the Spring breeze 800NK Lingxi + version is equipped with an 8-inch curved screen instrument, the display is more clear and intuitive, and the curved screen design also improves the visual sense of packaging and the convenience of operation to a certain extent. The Bombardier Spyder F3 Style 10.25-inch touch screen is more atmospheric, showing more information and finer details of images and text. Interface layout and ease of operation: CarPlay's interface layout is simple and clear, similar to the native interface style of Apple devices, and users are easy to use. The CarPlay interface has been adapted and optimized in some motorcycle machine systems to integrate it with the overall design style of the vehicle, and the operation logic is relatively simple. Various operations can be completed by touching the screen or the physical buttons equipped with the vehicle, such as switching applications and adjusting the volume.   Functional experience Navigation function is practical: Navigation is one of the more commonly used functions of CarPlay during riding. It can seamlessly connect with the map app on the phone, get the latest road information in real time, and provide accurate route planning and voice navigation prompts. For example, in the face of complex traffic conditions and numerous forks in urban roads, CarPlay's navigation can help riders accurately find the destination, avoid the congested sections in time, and save time. Rich in music entertainment: allows riders to easily play audio content such as music, audiobooks or podcasts from their phones. Riders can switch songs and adjust the volume through the car screen or the vehicle's control buttons, adding fun to themselves and relieving fatigue during long rides. Convenient communication function: When the mobile phone is connected to CarPlay, if there is a call, the rider can directly check the call information through the machine screen, and choose to answer or reject the call, without taking out the mobile phone operation, ensuring the safety of the ride. In addition, some models also support voice control function, riders can use voice commands to make calls, send text messages, etc., further improving the convenience of operation.   Performance aspect Connection stability: The CarPlay function of the new motorcycle has greatly improved the connection stability. For example, after the Spring Breeze 800NK has been upgraded by OTA, the stability and fluency of CarPlay connection have been optimized. In the normal riding process, there is generally no reason to disconnect, which can provide users with continuous and stable experience. Response speed: The overall response speed is fast, whether it is clicking the application icon, switching the menu, or executing various operation instructions, the system can respond quickly, with almost no significant delay, so that the rider can use various functions smoothly, and will not affect the operating experience and mood because of the delay.   Safety and convenience Reduce distractions: The CarPlay function integrates some functions of the mobile phone into the motorcycle machine system, and the rider does not need to frequently look down at the mobile phone or operate the mobile phone with his hand when viewing navigation, switching music or answering the phone, his eyes can pay more attention to the road situation, and his hands can always keep on the handlebars, which effectively reduces the safety risks caused by distracted operation of the mobile phone. Convenient charging: Some motorcycles equipped with CarPlay function also provide USB interface or wireless charging function, which is convenient for riders to charge their mobile phones while using CarPlay, ensuring that the mobile phone battery is sufficient, and avoiding the use of CarPlay due to the lack of mobile phone battery

WHAT IS NMEA 2000 and how to judge the communication quality of NMEA 2000 protocol?

Click for product details   Definition NMEA 2000 is a standard protocol for communication between ships and Marine electronics. Developed by the National Marine Electronics Association (NMEA-National Marine Electronics Association), it builds on the previous NMEA 0183 protocol to provide a more efficient and flexible communications standard. To adapt to the increasingly complex functional and data exchange requirements of modern Marine electronic equipment. Protocol architecture NMEA 2000 is based on the Controller Area Network (CAN) bus technology. The CAN bus was originally developed for communication between electronic control units (ECUs) in the automotive industry. In Marine applications, it provides a reliable, high-speed network connection. The network topology can be a linear bus, a tree structure, or a combination of both. This flexibility allows equipment to easily access the network and adapt to different ship layouts and equipment numbers. For example, on a small yacht, GPS navigators, depth gauges, and engine monitoring devices CAN be simply connected to the CAN bus in a linear manner; In large merchant ships, a more complex tree-shaped network can be built to connect numerous sensors, navigation equipment, communication equipment, etc.   Data transmission characteristics High speed: NMEA 2000 has a data transfer rate of up to 250 kbps, a huge improvement over the NMEA 0183 protocol (maximum baud rate of 4800bps). This allows it to quickly transmit a large amount of navigational data, such as the ship's position, speed, heading, depth, weather information, and the status information of various equipment. For example, when a ship is traveling at high speeds, rapidly updated position and speed data can be transmitted between navigation equipment and autopilot equipment in a timely manner through the NMEA 2000 protocol, ensuring the accuracy of navigation. Multi-device communication: It supports multiple devices to communicate at the same time. In an NMEA 2000 network, devices from several different manufacturers can be connected, as long as these devices comply with the NMEA 2000 standard. This is because the protocol sets uniform rules for data formats and communication. For example, shipowners can choose from different brands of GPS, radar, sonar and autopilot equipment, all of which can exchange data and work together through the NMEA 2000 network. Data format specification   The NMEA 2000 protocol has strict regulations on the format of the data. Data is transmitted across the network in the form of messages, each with a unique identifier called a PGN-Parameter Group Number. PGN identifies the type and content of a message and ranges from 0 to 65535. For example, PGN 129025 indicates the position information of the ship, including longitude, latitude, altitude, etc. PGN 129026 Indicates the speed information of the ship, including speed to the ground and speed to the water. The device can recognize and process the received data based on PGN, enabling accurate data sharing and interaction. Application field Marine navigation and autopilot: In Marine navigation, the NMEA 2000 protocol enables GPS navigators to transmit accurate position, speed, heading and other information to other devices on board, such as electronic chart displays, autopilot and so on. The autopilot can automatically adjust the course and speed of the ship according to this information, combined with the preset route and electronic chart, to achieve automatic navigation. For example, when the ship is sailing at sea, the navigator sends the real-time position of the ship to the autopilot through the NMEA 2000 protocol, and the autopilot automatically controls the rudder Angle of the ship according to this information and compares it with the preset course, so that the ship travels along the correct course.   How to judge the communication quality of NMEA 2000 protocol? Data transmission accuracy Position information verification: For nautical applications, position information (longitude and latitude) is one of the most critical data. This can be determined by comparing the location information provided by multiple NMEA 2000 compliant navigation devices, such as different brands of GPS. If the location data they display is within a reasonable error range (usually within a few meters to tens of meters, depending on equipment accuracy and environmental factors), the data transmission accuracy is high. For example, in an open and well-signaled environment such as a port, the error of the ship's position displayed by the two devices is less than 10 meters, indicating that the communication of the protocol is of good quality in transmitting location data. Speed and heading data verification: By looking at the consistency of speed and heading data to determine. When the ship is sailing steadily, the speed and heading data obtained from different equipment (such as shipborne radar, log, etc.) should match. If the speed data differ by more than a certain range (such as more than 10% of the ship's normal speed fluctuation range) or the heading data differ significantly (more than 5-10 degrees), it may indicate a problem with the quality of communication. Data transmission integrity Message integrity Check: Each message of the NMEA 2000 protocol has a fixed format and content, including the message header, parameter group number (PGN), data fields, and message tail. You can use a professional network monitoring tool or the diagnostic function of the device to check whether the received message is complete. For example, if a message containing ship depth information (PGN 129029) is missing parts of the data field (such as the significant numeric part of the depth value), the data transmission is incomplete and the communication quality is poor. Data loss rate assessment: Statistics of data loss during a long period of data transmission. Some advanced network monitoring equipment or software can record the number of data lost and the amount of data lost. In general, the data loss rate should be lower than a certain threshold, for example, in normal navigation, if the data loss rate exceeds 1%, the normal use of the equipment may be affected, and the communication quality needs to be further checked. Data transfer rate and real-time Rate test: Using professional network test equipment to measure the data transfer rate of the NMEA 2000 network. Its theoretical maximum speed is 250kbps, and in practical applications, although it may not reach this maximum due to factors such as device performance and network load, it should also be within a reasonable range. For example, in a medium-sized Marine electronic equipment network (including GPS, radar, engine monitoring and other equipment), the data transmission rate should be able to stabilize at about 100-200kbps to ensure that various data (real-time location, speed, equipment status, etc.) can be transmitted in a timely manner. Real-time detection: Observe whether the data is updated in time. For example, for a ship's position data, when the ship is traveling at high speeds (such as 15-20 knots), the position information should be updated every few seconds (usually 1-5 seconds) to ensure that the navigation equipment and autopilot equipment can operate according to the latest information. If the data update delay is significant, more than twice the normal update period, it may be caused by insufficient communication rate or network congestion, which will affect the communication quality. Network stability and anti-interference capability Network connection stability: Check whether network connections between devices are frequently interrupted. You can check the connection status through the device's connection indicator or network management software. During normal navigation, if the connections between devices are frequently disconnected (for example, more than 3 to 5 times per hour), this may be due to network hardware faults (such as cable damage, loose interfaces) or electrical interference, indicating poor network stability.

Car radio signal is bad? Try these methods.

Is the signal on your car radio poor? While driving on the highway, besides listening to a CD to soothe your mood, the next best option is tuning in to the radio for real-time traffic updates. However, even this car radio fails to put your mind at ease with its terrible signal - sometimes only picking up two stations... Many friends are puzzled as to why they can't get a signal, especially when not in a basement or tunnel. Let me tell you what you can do about it. Reasons for poor signal reception: The radio receives broadcast signals through an antenna, and signal quality is influenced by various factors such as mountainous areas, tunnels, tall buildings, magnetic fields, or areas with poor signal reception, hindering or interfering with the radio’s ability to receive signals. In adverse weather conditions like overcast, rainy, foggy, or snowy weather, radio signals are weaker compared to normal conditions. When a vehicle is equipped with devices that have not undergone relevant electromagnetic compatibility tests (such as certain dashcams, car phone chargers, etc.), the internal circuits of these devices emit significant interference signals, affecting the radio's ability to receive stations normally. The automatic tuning frequency range is large, automatically prioritizing channels with better frequencies and having a matching baseline. In areas with poor signals, channels that do not meet the matching conditions will be skipped automatically (adjustable manually using the button circled in red on the right side of the image). Solutions: As long as the radio can pick up signals normally without environmental interference, the radio should be functioning properly. In areas with weak signals, you can manually adjust the frequency band for reception, but this may come with some noise. If you notice a decrease in reception quality or certain stations becoming inaccessible after installing a specific device, stop using that device promptly. If you are unable to receive any signal under any circumstances, visit your local dealership to check if the radio and antenna are functioning correctly. Having trouble with your car radio signal? Now you know how to handle it？

Hong Kong Exhibition is in progress!

On the second day of the Hong Kong Electronics Expo today, we've had a great turnout with many friends visiting our booth for engaging discussions. Tomorrow marks the final day, so for those who haven't made it yet or are in the vicinity, this is your chance to join us!   Our showcase includes a range of products such as MP3 car players, CarPlay box, 13-inch Android stereo, portable navigation screens for motorcycles and cars, and a variety of in-car entertainment systems for both Volkswagen and Android multimedia player.   Our collection of in-car gadgets is extensive, so we look forward to your visit! Our booth number is 1C-D21, and the expo runs from October 13th to October 16th.

Invitation to Visit Our Booth at the HKTDC Exhibition

Dear Esteemed Guests,   We are delighted to extend our invitation to you to visit our booth at the upcoming HKTDC exhibition in Hong Kong. The event will be held at 1 Expo Drive, Wan Chai, Hong Kong, with our booth located at 1C-D21. The exhibition will run from October 13th to October 16th.   At our booth, we will be showcasing a range of cutting-edge automotive electronic products. Among our featured items are Android car multimedia systems in 10-inch, 11-inch, 13-inch, and 15-inch variants, portable navigation devices for both cars and motorcycles, CarPlay adapters, Volkswagen car radio and a host of other innovative products.   We cordially invite you to come and engage with us at our booth, where you can experience firsthand the quality and functionality of our products. Our team will be on hand to provide professional insights, answer any inquiries, and ensure you have an enriching experience at the exhibition. We look forward to welcoming you to our booth and engaging in fruitful discussions with you. See you at the exhibition!   Best regards, [Grand New Material (shenzhen) Co., Ltd.]