1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your KUNFINE 10.25" Android Stereo GPS Navigation System, designed specifically for Audi Q7 models from 2010 to 2015 with MMI 3G systems. Please read this manual thoroughly before installation and use to ensure proper functionality and to maximize your product experience.
2. Vehicle Compatibility
This unit is compatible with Audi Q7 vehicles manufactured between 2010 and 2015, specifically those equipped with the MMI 3G system. It is crucial to verify your vehicle's MMI system type before installation.

Image 2.1: Visual guide for identifying MMI 2G (2005-2009) versus MMI 3G (2010-2015) systems. The unit is compatible with MMI 3G systems. An important note indicates incompatibility with Q7 models equipped with an analog screen (MMI 2G Basic version).
3. Package Contents
Please ensure all items listed below are present in your package:
- 1x Car Android Head Unit with Mask
- 1x GPS Antenna
- 1x Power Cable (Plug & Play)
- 2x USB Port Cable
- 1x RCA Expand Cable
- 1x RCA Connector for Reverse Camera
- 1x Install Kit (GIFT)
- 1x External Mic (GIFT)
- 1x AHD 720 Reverse Camera (GIFT)
4. Installation Guide
Installation of this head unit requires technical expertise and familiarity with automotive electronics. It is highly recommended that installation be performed by a qualified professional to prevent damage to the unit or your vehicle. Incorrect installation can lead to malfunction or damage not covered by warranty.
4.1 Wiring Diagram Overview
Refer to the wiring diagram below for connection details. Each numbered component corresponds to a specific connection point or accessory.

Image 4.1: Wiring diagram for the KUNFINE Android Head Unit (2010-2015 MMI 3G). This image illustrates the various cables and their intended connections, including GPS antenna, 4G antenna, external microphone, USB ports, power cable, RCA expand cable, reverse camera connector, and CANBUS adapter. A table below the image provides a legend for each numbered connection.
4.2 Connection Legend
| No. | Component | Description |
|---|---|---|
| 1 | GPS Antenna | Place on the dashboard for optimal signal reception. |
| 2 | 4G Antenna | Not used if the unit has built-in Mic. |
| 3 | External Microphone | Used for clear sound during navigation/Bluetooth phone calls. |
| 4 | Mini Speaker | Connect to the original LVDS cable which is removed from the original display screen. |
| 5 | LVDS Port | Connect to the original car harness and head unit. |
| 6 | Power/Audio Adapter | Connect to the OBD port under the steering wheel. |
| 7 | OBD Port | Put it in the glove box on the passenger side. |
| 8 | USB Port | Behind the A/C control panel. |
| 9 | CANBUS Adapter | Not needed to use. |
| 10 | GND | Used to provide power for aftermarket backup camera. |
| 11 | CCD-12V | Reverse trigger wire for aftermarket camera if the car has manual transmission. |
| 12 | BACK | Not needed to use if the car has auto transmission. |
| 13 | ACC-IN | Not needed to use. |
| 14 | CAMERA | Video input for aftermarket backup camera. |
| 15 | F VIDEO IN | Video input for aftermarket front view camera. |
| 16 | Adapter for original buttons | Connect to the original car harness of panel buttons. |
| 17 | Plug for Fiber-Optic MOST Adapter | For MMI 2G system. Not needed to use if the car has MMI 3G system. |
5. Initial Setup and Operation
5.1 Power On and Basic Navigation
After successful installation, turn on your vehicle's ignition. The head unit should power on automatically. The main interface will display various applications and settings.

Image 5.1: The Android System interface showing various applications available on the head unit, such as YouTube, Spotify, Netflix, and navigation apps, integrated into the vehicle's dashboard.
5.2 Wi-Fi and Hotspot Sharing
The unit supports internal Wi-Fi. To access online features, connect to a Wi-Fi network or use your mobile phone's hotspot. Navigate to Settings > Network & Internet > Wi-Fi to configure your connection.
5.3 Bluetooth Connectivity
Pair your mobile phone via Bluetooth for hands-free calling and audio streaming. Go to Settings > Connected devices > Pair new device on the head unit and search for the unit on your phone.
6. Operating Instructions
6.1 CarPlay and Android Auto
The unit features built-in Wireless CarPlay and Android Auto for seamless smartphone integration.
- For Wireless Apple CarPlay:
- Establish a Bluetooth connection between the car stereo and your iPhone.
- Open the "Zlink5" application on the car stereo.
- Enjoy Wireless Apple CarPlay.
- For Wireless Android Auto:
- Download the Android Auto app on your Android phone.
- Establish a Bluetooth connection between the car stereo and your Android phone.
- Open the "Zlink5" application on the car stereo.
- Enjoy Wireless Android Auto (Note: Some Samsung phones may not be supported).

Image 6.1: Demonstration of Wireless CarPlay and Android Auto functionality, showing the user interface for both systems on the head unit.
6.2 Navigation
The unit supports various navigation applications. You can install your preferred navigation app from the Google Play Store or use pre-installed options. Voice commands are supported for navigation.

Image 6.2: The navigation interface showing various supported navigation apps and examples of voice command integration for directions and music playback.
6.3 Multimedia Playback
The unit supports all formats of audio playback and USB input for media files. Access your music and video files through the respective applications on the head unit.
6.4 Steering Wheel Control and Original Car Settings
The system is designed to support your vehicle's original steering wheel controls, MMI knob control, and maintain the original car system and stereo functionality.

Image 6.3: Visual representation of the head unit's compatibility with original car features, including steering wheel controls, MMI knob, original rear camera, and the ability to maintain the original car system and stereo.
6.5 Rear View Camera
The unit supports aftermarket RCA type backup cameras. An AHD 720 Reverse Camera is included as a gift. For optimal functionality, ensure proper connection as per the wiring diagram.

Image 6.4: Illustration of an optional 360-degree rear view camera system, showing how multiple camera feeds (front, back, left, right) can be displayed on the head unit for enhanced parking and maneuvering.
7. Specifications
| Feature | Detail |
|---|---|
| Display Size | 10.25 Inches |
| CPU | Octa Core |
| Operating System | Android System |
| RAM | 8 GB |
| ROM | 64 GB |
| Connectivity Technology | USB, Bluetooth, Wi-Fi |
| CarPlay/Android Auto | Built-in, Wireless & Wired connections |
| Display Type | IPS Touchscreen, Capacitive |
| Resolution | 1920*720 (High Definition) |
| Voice Command | Touch Pad, Touchscreen |
| Steering Wheel Control | Supported |
| OSD Language | English, French, German, Spanish, Italian, etc. (over 20 languages) |

Image 7.1: Resolution comparison illustrating the superior clarity of the 1920x720 display (approximately 1,368,000 pixels) compared to a 1280x480 display (approximately 628,800 pixels).
8. Maintenance
To ensure the longevity and optimal performance of your head unit, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the screen and exterior. Avoid abrasive cleaners or solvents.
- Temperature: Operate the unit within standard automotive temperature ranges. Extreme temperatures can affect performance.
- Software Updates: Periodically check for software updates to ensure the best performance and access to new features.
9. Troubleshooting
This section addresses common issues you might encounter. For problems not listed here, please contact customer support.
- No Power:
Check all power connections as per the wiring diagram. Ensure the vehicle's ignition is on. Verify fuses related to the car stereo system.
- No Sound:
Ensure the volume is not muted or set to zero. Check audio output settings on the head unit. Verify all audio connections are secure. If using Bluetooth, ensure the phone is properly paired and audio is routed to the head unit.
- CarPlay/Android Auto Not Connecting:
Ensure Bluetooth is enabled and paired. Confirm the "Zlink5" app is open on the head unit. For Android Auto, verify the app is installed on your phone. Try restarting both the phone and the head unit. Check for software updates for both the head unit and your phone's operating system.
- GPS Signal Issues:
Ensure the GPS antenna is correctly installed and placed in an unobstructed location on the dashboard. Avoid placing objects over the antenna that could block the signal.
- Steering Wheel Controls Not Working:
Verify the CANBUS adapter and related connections are correctly installed as per the wiring diagram. Some vehicles may require specific configuration in the head unit's settings for steering wheel controls.
10. Warranty and Support
10.1 Product Warranty
This KUNFINE product comes with a one-year warranty covering manufacturing defects. This warranty does not cover damage caused by improper installation, misuse, accidents, or unauthorized modifications. Please retain your proof of purchase for warranty claims.
10.2 Customer Support
For any questions, technical assistance, or warranty inquiries, please contact KUNFINE customer support. Your consultation is always welcomed.
Contact information is typically provided on the product packaging or the seller's official website.