Introduction
This manual provides comprehensive instructions for the installation and operation of the Road Top 12.3-inch Wireless CarPlay Touchscreen. This system is designed to enhance your Audi Q5's original multimedia capabilities by integrating modern features such as wireless Apple CarPlay, wireless Android Auto, and Mirrorlink, while preserving the factory system's functionality. Please read this manual thoroughly before installation and use to ensure proper setup and optimal performance.
Compatibility
This Road Top 12.3-inch touchscreen is specifically designed for Audi Q5 models manufactured between 2009 and 2017, equipped with the 3G MMI system. It is crucial to verify your vehicle's MMI system version before installation.
Important: This unit is not compatible with Audi A4 or A5 models, nor with Audi Q5 models featuring the 2G MMI system.
To confirm compatibility:
- Step 1: Verify Factory Knob Position. Compare the image below with your car's factory knob position. Ensure it matches the green checkmark configuration.
- Step 2: Check MMI System Version. Access your car's MMI system information and confirm it is a 3G MMI system (e.g., MMI 3G+, MMI 3G Low/Basic). Refer to the image below for examples of compatible and incompatible MMI versions.
Figure 1: Audi Q5 MMI System Compatibility Check. Left side shows the correct knob position (green check), right side shows an incorrect position (red cross). Below are examples of MMI 3G+ and MMI 3G Low/Basic (green check) versus MMI 2G Low/Basic and MMI 2G High (red cross).
Product Features
The Road Top 12.3-inch touchscreen replaces your original car screen with a high-resolution 1920x720 display running on a Linux system. It integrates advanced features while maintaining the integrity of your vehicle's original systems.
- Wireless & Wired CarPlay: Seamlessly connect your iPhone for navigation, calls, messages, and music.
- Wireless & Wired Android Auto: Integrate your Android smartphone for access to Google Maps, media, and voice commands.
- Mirrorlink Functionality: Display your smartphone screen directly on the 12.3-inch unit.
- High-Resolution Touchscreen: Enjoy a clear and responsive 1920x720 HD display.
- Retains Original Functions: Preserves the factory radio, amplifier, joystick control, and original reverse camera functionality.
- Voice Control: Utilize voice commands for safer driving with CarPlay and Android Auto.
- Camera Support: Compatible with original and aftermarket reverse cameras. (Note: Not compatible with aftermarket front cameras or 360-degree cameras).
- Audio Output: Sound functions via auxiliary channel or Bluetooth.
Figure 2: Overview of integrated product features.
Figure 3: Compatible Original CANBUS Protocol. Illustrates retention of OEM functions.
Package Content
The product package includes the following components:
- 12.3-inch Linux Screen: The main display unit.
- Power Cable: For connecting the unit to the vehicle's power supply.
- Airbag Light Adapter Cable: Specific cable for airbag system integration.
- AMI Cable: For audio media interface connection.
- Screw Set: For secure mounting.
- Bracket: Mounting bracket for the screen.
- Iron Frame: Additional support frame.
Figure 4: Included components in the product package.
Note: Do not finalize installation until you have tested every function on your car.
Setup and Installation
Professional installation is recommended due to the complexity of integrating with the vehicle's existing systems. The installation process typically involves removing parts of the car's dashboard to connect the necessary wiring. No cutting of original wires is required.
Before reassembling the dashboard, it is advised to test all functions to ensure correct operation and avoid the need for re-disassembly.
Installation Overview:
- Carefully remove the original car screen and dashboard trim.
- Connect the provided power cable, airbag light adapter cable, and AMI cable to their respective ports.
- Mount the new 12.3-inch screen using the provided bracket, screw set, and iron frame.
- Before securing the dashboard, power on the vehicle and test all functions, including the original MMI system, CarPlay, Android Auto, Mirrorlink, and camera inputs.
- Once all functions are verified, reassemble the dashboard components.
Figure 5: Before and After Installation comparison.
Operating Instructions
Switching Between Systems
The unit allows seamless switching between the new CarPlay/Android Auto system and your car's original MMI system.
- To switch to the original MMI system, click the "OEM" button on the homescreen menu of the new display.
- To return to the Linux system (CarPlay/Android Auto), simply touch the screen.
Figure 6: System Switching Interface.
Wireless CarPlay and Android Auto
Connect your smartphone wirelessly or via a wired connection to access navigation, make calls, send/receive messages, and enjoy music directly on the 12.3-inch touchscreen. Voice control is supported for both Apple CarPlay (Siri) and Android Auto (Google Assistant).
Figure 7: CarPlay, Android Auto, and Mirrorlink in action.
Mirrorlink
The Mirrorlink function allows you to duplicate your smartphone's screen onto the larger 12.3-inch display. This is useful for viewing movies, maps, photos, and other content.
Camera Functionality
The unit supports your vehicle's original reverse camera and is compatible with most aftermarket reverse cameras. When reversing, the screen will automatically display the camera feed.
Figure 8: Reverse Camera Display.
Audio Output
Audio from the new system is routed through your car's auxiliary (AUX) channel or Bluetooth connection. For optimal sound quality, using the Bluetooth connection is generally recommended over the AUX jack.
Maintenance
To ensure the longevity and optimal performance of your Road Top touchscreen, follow these simple maintenance guidelines:
- Cleaning: Use a soft, lint-free cloth to gently wipe the screen. For stubborn smudges, slightly dampen the cloth with water or a screen-safe cleaner. Avoid harsh chemicals, abrasive materials, or excessive moisture.
- Temperature: Avoid exposing the unit to extreme temperatures for extended periods. High temperatures, especially direct sunlight, can affect screen performance and longevity.
- Connections: Periodically check that all cables are securely connected. Loose connections can lead to intermittent functionality.
- Software Updates: Check the manufacturer's website for any available software updates to ensure the system runs efficiently and has the latest features.
Troubleshooting
If you encounter issues with your Road Top touchscreen, please refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power/Screen not turning on | Loose power cable connection. | Check all power connections to ensure they are firmly seated. |
| No sound or poor sound quality | Incorrect audio input selection (AUX/Bluetooth) or loose AMI cable. | Ensure your car's audio source is set to the correct AUX input or Bluetooth. Verify AMI cable connection. Use Bluetooth for better sound quality. |
| CarPlay/Android Auto not connecting | Bluetooth/Wi-Fi issues, incorrect phone settings, or loose USB connection. | Ensure Bluetooth and Wi-Fi are enabled on your phone and the unit. Restart both devices. Try a different USB cable if using a wired connection. |
| Screen freezes or becomes unresponsive | Software glitch or overheating. | Restart the unit (refer to the manual for specific restart procedures if available). Ensure the car interior is not excessively hot. |
| Original MMI functions not working | Incorrect wiring or system switching issue. | Verify all wiring connections related to the OEM system. Ensure you are correctly switching back to the OEM system via the "OEM" button. |
Many issues can be resolved by ensuring all cables are correctly connected and settings are properly adjusted. If problems persist, please contact Road Top customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | Road Top |
| Model Number | RT-LN-3GMMI-10 |
| Screen Size | 12.3 inches |
| Display Type | Touchscreen |
| Resolution | 1920 x 720 HD |
| Operating System | Linux |
| Connectivity Technology | Bluetooth, Wireless (CarPlay/Android Auto) |
| Supported Radio Bands | FM, DAB+ (via original system) |
| Power Source | Cable Electric |
| Material | Plastic |
| Product Dimensions (L x W x H) | 18L x 39W x 17H centimeters |
| Compatible Devices | Smartphone, Laptop, Phone Earphone, Speaker, MP3 Player |
| Country of Origin | China |
Warranty Information
This product comes with a 1-year warranty. For warranty claims or detailed information regarding coverage, please retain your proof of purchase and contact Road Top customer support.
Customer Support
For any technical assistance, installation guidance, or troubleshooting not covered in this manual, Road Top offers 24-hour technical support.
To contact support:
- Step 1: Navigate to the product page on Amazon. Locate and click the "Road Top Direct" seller button, usually found near the "Add to Cart" button.
- Step 2: On the seller's page, click the "Ask a question" button.
Submit your questions through this channel, and the Road Top support team will respond promptly.
Figure 9: How to contact Road Top technical support.