Introduction
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your MekedeTech Android Car Stereo GPS Navigation system. This unit is specifically designed for Audi A4 B6 B7 S4 B7 B6 RS4 models manufactured between 2000 and 2009. It features an 8-core CPU, 2GB RAM, 32GB ROM, a 9-inch 1280*720 IPS touch screen, built-in 4G LTE, Wireless CarPlay, and Android Auto capabilities.
Please read this manual thoroughly before installation and use to ensure proper function and to maximize your experience with the device.
Setup and Installation
The MekedeTech Android car stereo is designed for a perfect fit in compatible Audi models and includes a frame kit and plug-and-play harness to support existing steering wheel controls. Professional installation is recommended.
1. Pre-Installation Overview
Before beginning installation, ensure all components are present and familiarize yourself with the vehicle's existing stereo system and dashboard layout.
Image: Comparison of the original Audi A4 stereo (top) and the MekedeTech Android car stereo installed (bottom), showing the integrated appearance.
2. Component Connection and Cooling Fan
The system includes an 8-core CPU, 2GB RAM, and 32GB ROM. It also supports an optional cooling fan to manage temperature, which is crucial for long-term performance, especially in varying climates.
Image: Detailed view of the internal hardware, including the 8-core processor, memory, and a demonstration of the cooling fan's effectiveness in maintaining optimal operating temperature. Setup steps for connecting the cooling fan are also shown.
3. 4G LTE SIM Card Installation
The unit supports 4G LTE connectivity. Insert a compatible 4G SIM card into the designated slot to access mobile data. There are two SIM card slots: one on the back of the main unit and one on the RCA cable.
Image: Illustration of the 4G LTE module and the physical SIM card slots for network access. Also highlights the integrated DSP processor for enhanced audio.
4. Wiring and Connections
Connect the provided wiring harness to the vehicle's existing wiring. Ensure all connections are secure. The plug-and-play harness supports the original steering wheel control functions.
- Connect the main power harness.
- Connect the GPS antenna.
- Connect the Wi-Fi antenna.
- Connect any auxiliary inputs/outputs (e.g., camera, external amplifier).
Operating Instructions
1. Initial Power On and System Navigation
After installation, turn on your vehicle's ignition. The unit will boot up to the Android operating system. Navigate the interface using the 9-inch IPS touch screen.
2. Wireless CarPlay and Android Auto
The unit features built-in Wireless CarPlay (for iOS devices) and Wired Android Auto (for Android devices). This allows seamless integration of your smartphone for navigation, music, calls, and messaging.
Image: Visual guide for connecting and using Wireless CarPlay (iOS) and Android Auto (Android) with the head unit. Shows the user interface for both systems.
Wireless CarPlay (iOS System) Connection Steps:
- Connect Bluetooth (BT) between your iPhone and the head unit.
- On the head unit, click on "Car Link" and wait for the connection.
- CarPlay can also be connected via USB cable for a wired connection.
Wireless Android Auto (Android System) Connection Steps:
- Connect Bluetooth (BT) between your Android phone and the head unit.
- On the head unit, click on "Car Link" and wait for the connection.
- Android Auto can also be connected via USB cable for a wired connection.
3. 4G LTE and Wi-Fi Connectivity
With a 4G SIM card inserted, the unit can connect to the cellular network for internet access. Alternatively, you can connect to a Wi-Fi hotspot.
- 4G LTE: Insert a 4G SIM card into the designated slot. The unit will automatically detect the network.
- Wi-Fi: Go to Settings > Network & Internet > Wi-Fi, then select your desired network and enter the password.
4. GPS Navigation
The unit comes with built-in GPS navigation and supports various map applications. Ensure the GPS antenna is properly installed for optimal signal reception.
5. Bluetooth 5.0
Connect your smartphone via Bluetooth 5.0 for hands-free calling and audio streaming. The advanced Bluetooth version ensures good sound quality.
6. Steering Wheel Controls
The system retains the original steering wheel control functions, allowing you to switch songs, channels, and adjust volume without taking your hands off the steering wheel.
7. DSP Sound System
The built-in DSP (Digital Signal Processor) provides multi-dimensional surround lossless sound effects, enhancing your audio experience.
Maintenance
To ensure the longevity and optimal performance of your MekedeTech car stereo, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the screen and exterior. For stubborn smudges, lightly dampen the cloth with water or a screen-safe cleaner. Avoid abrasive materials or harsh chemicals.
- Software Updates: Periodically check for system software updates through the unit's settings menu (if available) to ensure you have the latest features and security patches.
- Temperature Management: While the unit supports a cooling fan, avoid exposing the vehicle to extreme temperatures for prolonged periods when possible, as this can affect electronic components.
- Connection Checks: Occasionally check all wiring connections to ensure they remain secure, especially after driving on rough terrain.
Troubleshooting
If you encounter issues with your car stereo, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on | Loose power connection, blown fuse, vehicle ignition off | Check power wiring, inspect vehicle fuses, ensure ignition is on. |
| No sound output | Speaker wires disconnected, volume too low, audio settings incorrect | Verify speaker connections, increase volume, check audio output settings. |
| GPS signal lost or inaccurate | GPS antenna not properly connected or obstructed | Ensure GPS antenna is securely connected and has a clear view of the sky. |
| CarPlay/Android Auto not connecting | Bluetooth not paired, "Car Link" app not launched, phone settings | Ensure Bluetooth is paired, open the "Car Link" app, check phone's CarPlay/Android Auto settings. Try a wired connection. |
| Touch screen unresponsive | System freeze, temporary software glitch | Restart the unit (if possible), or perform a soft reset by turning off the vehicle and restarting. |
| 4G LTE/Wi-Fi not connecting | SIM card not inserted correctly, incorrect Wi-Fi password, no signal | Reinsert SIM card, verify Wi-Fi password, check for network signal strength. |
If the problem persists after attempting these solutions, please contact customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | MekedeTech |
| Model | 8-Core 2+32G |
| Compatibility | Audi A4 B6 B7 S4 B7 B6 RS4 (2000-2009) |
| Operating System | Android 13 OS |
| CPU | 8-Core A53 1.8GHz |
| Memory (RAM) | 2GB |
| Storage (ROM) | 32GB |
| Screen Size | 9 Inches |
| Screen Resolution | 1280*720 IPS |
| Touch Screen Type | Capacitive |
| Connectivity | 4G LTE, Wi-Fi, Bluetooth 5.0 |
| Special Features | Wireless CarPlay, Wired Android Auto, Built-in GPS Navigation, DSP Sound System, Steering Wheel Control Support |
| Power Output | 4*50W |
| Audio Format Support | APE/FLAC/WAV/MP3/WMA etc. |
| Video Format Support | MKV/RMVB/AVI/MP4/MDV etc. |
| Picture Format Support | PNG/JPEG/JPG/GIF/WBMP/BNP etc. |
Warranty Information
The MekedeTech Android Car Stereo GPS Navigation unit comes with a 1-Year Warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. Please retain your proof of purchase for warranty claims.
The warranty does not cover damage caused by improper installation, misuse, accidents, unauthorized repairs, or normal wear and tear.
Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact MekedeTech customer support. You can typically find contact information on the product packaging, the seller's website, or through your purchase platform.
Manufacturer: Shenzhen Mekede Technology Co.,Ltd
Please have your product model (8-Core 2+32G) and proof of purchase ready when contacting support.