1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your ANYFAR RM-AD3504Q Decoder Adapter. This device is designed to integrate advanced features like Wireless CarPlay and Android Auto into compatible Audi vehicles while retaining the original car system functionality.
Important Compatibility Notice:
This decoder adapter is specifically compatible with 2010-2015 Audi A6 and A7 models equipped with the MMI 3G system. Please verify your vehicle's compatibility before proceeding with installation.

Image 1.1: The ANYFAR RM-AD3504Q Decoder Adapter shown with a car's infotainment display featuring CarPlay.
2. Package Contents
Please ensure all items are present in the package:
- ANYFAR RM-AD3504Q Decoder Adapter
3. Vehicle Compatibility
The ANYFAR RM-AD3504Q Decoder Adapter is designed for specific Audi models and MMI 3G systems. Refer to the table below to confirm your vehicle's compatibility.

Image 3.1: Compatibility table detailing Audi A6 and A7 models and years for MMI 3G systems.
| Car Model | Years | Screen Size |
|---|---|---|
| A6 | 2012-2015 | 6.5" / 7" |
| A7 | 2010-2015 | 6.5" / 7" |
To determine your car's MMI 3G system version (Low/Basic, High, or 3G+), navigate to the 'Setup' or 'Settings' menu on your car's display and look for 'Version information' or 'Software version'. If you are unsure, please contact customer support for assistance.
4. Setup & Installation
Installation of the decoder adapter requires careful attention to wiring connections. It is recommended that installation be performed by a qualified professional.
4.1 Wiring Diagram
The following diagram illustrates the necessary connections for the decoder adapter with your vehicle's existing systems. Ensure all connections are secure and correctly matched.

Image 4.1: Detailed wiring diagram showing connections for LVDS, CAN, power, USB, microphone, AUX, and camera inputs.
- LVDS Cable: Connect the provided LVDS cable between the decoder and the original display cable.
- CAN/Power: Connect the CAN and power wires to the corresponding vehicle harness.
- USB: Connect the USB cable for media playback and phone charging.
- Video Inputs: Connect rear view CVBS and front view CVBS cables for camera integration.
- Audio: Connect AUX and MIC IN/OUT cables for audio functionality.
- Air Conditioning Cable: Connect to the original Air conditioning cable.
- Noise Reduction: If experiencing noise, try unplugging the designated cable as indicated in the diagram.
After all connections are made, secure the decoder adapter in a suitable location within the vehicle's dashboard or console, ensuring it does not interfere with other components or vehicle operation.
5. Operating Instructions
The decoder adapter enhances your vehicle's infotainment system with various modern functionalities.

Image 5.1: Overview of features including Bluetooth, CarPlay, Android Auto, Factory Protocol, Mirror Link, Lossless Installation, Voice Control, Live Map, Online Entertainment, and USB Play.
5.1 Dual System Switch
The adapter allows seamless switching between your vehicle's original MMI 3G system and the new CarPlay/Android Auto interface. This ensures you retain access to all original car functions.

Image 5.2: Visual representation of switching between the original car system and the new interface.
5.2 Wireless CarPlay & Android Auto
Connect your smartphone wirelessly to access CarPlay or Android Auto. This enables navigation, music playback, calls, messaging, and voice assistant features directly on your car's screen.
- Ensure your phone's Bluetooth and Wi-Fi are enabled.
- On your car's display, select the CarPlay or Android Auto option.
- Follow the on-screen prompts to pair your phone. Once paired, the connection will be automatic for future use.
5.3 Mirror Link & USB Drive Playback
The Mirror Link feature allows you to display your phone's screen directly onto the car's infotainment display. This is useful for viewing content from various applications.

Image 5.3: A smartphone screen mirrored onto the car's display, showing video content.
The integrated USB port supports media playback from a USB drive and can also be used to charge your smartphone.
5.4 Retaining Original Car Controls
The decoder adapter is designed to work seamlessly with your vehicle's existing control mechanisms. You will retain full functionality of the original touchscreen, steering wheel controls, and MMI knob controls for both the original system and the new interface.

Image 5.4: Illustrates the continued use of the car's touchscreen, steering wheel controls, and MMI knob.
5.5 Smart Voice Assistant
Utilize your phone's voice assistant (Siri for CarPlay, Google Assistant for Android Auto) for hands-free operation. This allows you to control navigation, make calls, send messages, and play music using voice commands.

Image 5.5: Examples of voice assistant interfaces (Siri and Google Assistant) on the car display.
5.6 Backup Camera Input Support
The adapter supports connecting an aftermarket backup camera or front camera. When the vehicle is shifted into reverse, the display will automatically switch to the camera feed, enhancing safety during parking maneuvers.

Image 5.6: A view of the car's display showing a backup camera feed with parking guidelines.
6. Maintenance
To ensure the longevity and optimal performance of your ANYFAR RM-AD3504Q Decoder Adapter, follow these general maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the exterior of the decoder. Avoid using liquid cleaners or solvents, as they may damage the device.
- Environment: Ensure the decoder is installed in a location free from excessive heat, moisture, or direct sunlight.
- Connections: Periodically check all wiring connections to ensure they remain secure. Loose connections can lead to intermittent functionality.
- Software Updates: Check the manufacturer's website for any available firmware updates for the decoder adapter. Follow the provided instructions carefully for any update procedures.
7. Troubleshooting
If you encounter issues with your decoder adapter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No display or black screen | Loose LVDS cable connection; Power issue; Incorrect input selected. | Check LVDS cable connections. Verify power supply to the decoder. Ensure the correct input source is selected on the car's MMI system. |
| CarPlay/Android Auto not connecting wirelessly | Bluetooth/Wi-Fi not enabled on phone; Incorrect pairing; Interference. | Ensure phone's Bluetooth and Wi-Fi are on. Delete previous pairings and re-pair the phone. Move phone closer to the adapter. |
| No audio or poor audio quality | Loose AUX/MIC connection; Incorrect audio source selected. | Check AUX and MIC connections. Ensure the car's audio input is set to AUX. If noise is present, refer to the wiring diagram for noise reduction steps. |
| Original car controls not working | CAN bus connection issue; Software glitch. | Verify CAN bus connections. Restart the car's MMI system. |
| Backup camera not displaying | Incorrect camera input connection; Camera power issue. | Check CVBS video input connection. Ensure the camera is receiving power. |
If the problem persists after attempting these solutions, please contact ANYFAR customer support.
8. Specifications
Key technical specifications for the ANYFAR RM-AD3504Q Decoder Adapter:
- Model Number: RM-AD3504Q
- Brand: ANYFAR
- Connectivity Technology: USB
- Controller Type: Hand Control (via original car controls)
- Special Feature: Hands-Free Calling
- Compatible Devices: Smartphone
- Connector Type: Micro USB
- Audio Output Mode: Stereo
- Manufacturer: Huizhou Rhythm Technology Co, Ltd
- Package Dimensions: 10.63 x 6.69 x 4.33 inches
- Item Weight: 1.76 Pounds
9. Warranty & Support
For warranty information and customer support, please refer to the documentation included with your product or visit the official ANYFAR website. Keep your purchase receipt as proof of purchase for warranty claims.
For technical assistance or inquiries, please contact ANYFAR customer service through their official channels.





