Introduction
This manual provides comprehensive instructions for the EZoneTronics Wireless CarPlay Android Auto Decoder Kit, designed to integrate advanced smartphone connectivity into your Audi A8 (2010-2017) with the MMI 3G system. This kit enhances your vehicle's infotainment capabilities while retaining the original car's aesthetics and control mechanisms.
Compatibility
This decoder device is specifically compatible with:
- Audi A8 models manufactured between 2010 and 2017.
- Vehicles equipped with the MMI 3G system.
- Original Equipment Manufacturer (OEM) screen sizes of 6.5 inches or 7 inches.
If you are uncertain about your car's compatibility, please contact customer service. Provide a picture of your car's system version number and central control unit for verification.
Setup and Installation
The EZoneTronics Decoder Kit features a plug-and-play design, minimizing the need for complex modifications. No cutting or breaking of original car cables is required. It is not necessary to disassemble the factory screen.
Package Contents:
- 1 × Audi Car Unit (Decoder Box)
- 1 × Power Harness
- 1 × RCA/USB Cable
- 1 × LVDS Input/Output Cable
- 1 × WiFi Antenna
Wiring Diagram:
Refer to the following diagram for correct cable connections. Ensure all connections are secure before reassembling your vehicle's interior.

Important: Most installation issues arise from incorrect cable connections. Double-check all wiring according to the provided diagram. Ensure all connectors are fully seated and secure. If you encounter any noise, try unplugging the AUX cable as indicated in the diagram.
Operating Instructions
1. Wireless CarPlay and Android Auto
The kit supports both wireless and wired CarPlay and Android Auto. It features built-in 2.4G and 5.8G WiFi for optimal wireless connection and Bluetooth 5.0 technology.
- CarPlay: Connect your iPhone wirelessly or via USB. Access navigation, make calls, send messages, and listen to music directly from your car's display.
- Android Auto: Connect your Android phone wirelessly or via USB. Enjoy Google Maps, Waze, music streaming, and voice commands for a safer driving experience.


2. MirrorLink Functionality
The MirrorLink feature allows you to mirror your smartphone's screen directly onto the car's display. This enables streaming of various content from your device.

3. Control Methods
The system retains compatibility with your car's original control mechanisms:
- Steering Wheel Controls: Use your existing steering wheel buttons to navigate and control functions.
- MMI Rotary Knob: The original MMI rotary knob and buttons remain fully functional for system interaction.
- Touch Control: If your car's specifications allow, touch control on the screen may also be supported.

4. Smart Voice Assistant
Utilize voice commands for hands-free operation. The system supports Siri for Apple devices and Google Voice for Android devices. Simply say "Hey Siri..." or activate Google Voice to:
- Make calls.
- Get directions using navigation apps.
- Play music from your preferred streaming services.
- Access news and other information.

5. Online Navigation
Access various navigation applications through CarPlay or Android Auto, including Google Maps, Waze, and Apple Maps. The system provides real-time traffic information to help you reach your destination efficiently.

6. Camera Support
The decoder kit supports the integration of various camera systems:
- Rear View Camera: Automatically switches to the rear view camera display when the vehicle is in reverse gear. Supports original and aftermarket cameras (PAL, NTSC, CVBS AHD).
- Front DVR Camera: Supports front DVR camera input.
- 360 Panoramic Cameras: Compatible with HD 360 panoramic camera systems, dynamic guide lines, and parking distance control.

7. Audio Quality (DSP)
The unit features a built-in Digital Signal Processor (DSP) with a fully adjustable audio equalizer, ensuring high-quality sound output for all media.
8. Switching Between Systems
You can switch between the original MMI system and the CarPlay/Android Auto interface at any time using the factory controls. A dedicated button or combination of buttons will activate the decoder kit's interface.
Specifications
| Brand | EZoneTronics |
| Model Number | RM-AD3504Q |
| Manufacturer | Rhythm Electronics Limited |
| Compatible Car Models | Audi A8 (2010-2017) with MMI 3G system (6.5"/7" OEM screen) |
| Connectivity | Wireless CarPlay, Wireless Android Auto, MirrorLink, USB |
| Wireless Technology | WiFi (2.4G & 5.8G), Bluetooth 5.0 |
| Control Integration | Original Steering Wheel Controls, MMI Rotary Knob, (Optional) Touch Control |
| Voice Assistant | Siri, Google Voice |
| Navigation Support | GPS, Google Maps, Waze, Apple Maps (with real-time traffic) |
| Audio Features | Built-in DSP, Adjustable Audio Equalizer |
| Camera Inputs | 2 RCA inputs (PAL, NTSC, CVBS AHD for Rear/Front/360 Cameras) |
| Installation Type | Plug and Play (no wire cutting) |
| Package Dimensions | 27 x 17 x 11 cm (10.63 x 4.12 x 6.7 inches) |
| Package Weight | 1.3 kg (1300 grams) |
Maintenance
The EZoneTronics Decoder Kit is designed for minimal maintenance. Keep the unit and connections free from dust and moisture. No user-serviceable parts are inside the main unit. For cleaning the car's display, follow your vehicle manufacturer's recommendations.
Troubleshooting
- No Display / Incorrect Functionality after Installation:
Most issues stem from incorrect cable connections or configurations. Double-check all wiring according to the provided diagram (Figure 1). Ensure all connectors are fully seated and secure. If the problem persists, contact customer support.
- Audio Noise:
If you experience audio noise, try unplugging the AUX cable as indicated in the wiring diagram. Ensure proper grounding of the unit if applicable.
- Wireless Connectivity Issues (CarPlay/Android Auto):
Ensure your phone's Wi-Fi and Bluetooth are enabled. Check that your phone is within range and properly paired. Restart both your phone and the car's infotainment system. Verify that the car's Wi-Fi antenna is correctly installed.
- Voice Control Not Responding:
Ensure your phone is properly connected and that Siri or Google Voice is enabled on your device. Speak clearly and directly towards the car's microphone. Check microphone connections if applicable.
Always ensure all functions work correctly before fully reassembling your vehicle's interior after installation.
Warranty
Specific warranty information is typically provided at the point of purchase or within the product packaging. Please refer to your purchase documentation or contact the seller/manufacturer for details regarding warranty coverage and terms.
Customer Support
For technical assistance, compatibility inquiries, or any other support needs, please contact EZoneTronics customer service. When contacting support, please have your product model number (RM-AD3504Q) and details of your vehicle (make, model, year, and MMI system version) readily available.
You may also be asked to provide photos of your car's central control unit or system version for accurate diagnosis.





