Product Overview
The YUNTX Android 14 Car Stereo is an advanced 2-DIN infotainment system designed for Audi A4 (B6/B7) and Seat Exeo vehicles. It features an Octa-Core processor, 8GB RAM, and 256GB ROM, ensuring smooth performance. The 9-inch IPS touchscreen provides a clear display with a resolution of 1280x720 pixels. This unit integrates modern connectivity options and multimedia capabilities to enhance your driving experience.
Key features include built-in Wireless and Wired CarPlay/Android Auto, a Digital Sound Processor (DSP) with a 64-band equalizer, Bluetooth 5.0 for hands-free calls and music streaming, and support for 4G/WiFi internet connectivity. It also offers comprehensive navigation options with both online and offline GPS support, and enhanced safety features like automatic reverse image display and optional 360-degree camera support.

Image: The main interface of the YUNTX Android 14 Car Stereo, displaying navigation, system specifications (8GB RAM, 256GB ROM), and icons for Android 14, CarPlay, and DSP.
Package Contents
Upon unboxing your YUNTX Car Stereo, please verify that all the following components are included:
- 1 x Car Radio Unit
- 1 x Power Cable
- 1 x RCA A Cable
- 1 x RCA B Cable
- 1 x RCA C Cable
- 1 x GPS Antenna
- 1 x USB Cable
- 1 x External Microphone
- 1 x Rear Camera
- 1 x User Manual

Image: A comprehensive diagram illustrating the various cables and accessories included in the package, along with a detailed wiring schematic for installation.
Setup and Installation
This car stereo is designed for specific Audi A4 (B6/B7) models from 2002-2008 and Seat Exeo models from 2008-2012. Before installation, ensure compatibility with your vehicle. Professional installation is recommended.
Compatibility Check
Confirm your car model and year match the compatible list: Audi A4 B6 (8E/8H) (2002-2006), B7 (8E/8H) (2004-2008), S4 B7 (8E/8H) (2005-2008), S4 B6 (8E/8H) (2003-2005), RS4 (2002-2008), RS4 B7 (8E) (2006-2008), and Seat Exeo (2008-2012).

Image: A visual comparison showing the vehicle's dashboard before and after the installation of the YUNTX car stereo, highlighting the integrated fit.
Wiring Connections
Refer to the provided wiring diagram for correct connections. Ensure all power, speaker, antenna, and accessory cables are securely connected. The unit supports various inputs including RCA for audio/video, USB, and a dedicated GPS antenna port.
- Power Socket: Connect the main power harness to your vehicle's wiring.
- GPS Antenna: Connect the GPS antenna for navigation functionality.
- USB Cable: Connect the USB cable for media playback, smartphone mirroring, and data transfer.
- External Microphone: Connect the external microphone for improved call quality.
- Rear Camera: Connect the included rear camera for automatic reverse image display.
- RCA Cables: Use RCA A, B, and C cables for various audio/video inputs and outputs, including subwoofer and amplifier connections.
Operating Instructions
System Boot-up and Interface
The system features a fast-boot function, allowing access to the Android system in less than 2 seconds. The intuitive 9-inch IPS touchscreen provides a clear and responsive user interface.

Image: Visuals showcasing the fast boot feature, online and offline GPS navigation, the automatic reversing camera display, and the optional 360-degree panoramic camera view.
CarPlay and Android Auto
The unit supports both wireless and wired Apple CarPlay and Android Auto. Connect your smartphone to access navigation, make calls, send messages, and play music directly from your phone's interface on the car stereo screen.
- Wireless Connection: Pair your phone via Bluetooth for wireless CarPlay/Android Auto.
- Wired Connection: Connect your phone using a USB cable for a stable wired connection.
GPS Navigation
The stereo comes with pre-installed offline maps and supports online navigation apps like Google Maps, Sygic, and Waze. You can listen to radio, Bluetooth audio, or USB media while navigating.
Bluetooth 5.0
Utilize Bluetooth 5.0 for stable and high-quality hands-free calling and audio streaming. The system supports quick contact search, phonebook synchronization, and BT music playback.
Internet Connectivity (4G/WiFi)
The unit has a built-in WiFi modem. For 4G internet access, an additional external 4G modem is required (sold separately).
Mirroring Links
Mirror your smartphone screen (Android or iOS) onto the car stereo display via USB cable or WiFi connection. This allows you to view and control your phone's content directly from the stereo.

Image: Displays of the DAB+ digital radio interface, integrated CarPlay and Android Auto, Bluetooth connectivity for calls and music, and the Mirror-Link feature in action.
Radio (AM/FM/DAB+)
Equipped with a NXP TEF7708 radio IC for excellent reception. It supports AM/FM tuning worldwide and includes RDS. DAB+ digital radio is supported with an optional external DAB+ tuner (B07NRD4T9D).
Digital Sound Processor (DSP)
The built-in DSP features a 64-band equalizer, Smart Bass, Balance & Delay adjustments, Loudness, and Filter controls for a customizable and cinematic audio experience.
Steering Wheel Controls
The unit supports your vehicle's steering wheel controls, allowing convenient adjustment of volume, track changes, and other functions without taking your hands off the wheel.
OBD2 Function (Optional)
Compatible with most ELM327 OBD2 and WiFi-OBD Bluetooth scanners. An OBD2 adapter must be purchased separately to utilize this feature for vehicle diagnostics.
Reversing Mode and 360 Camera (Optional)
The system automatically switches to the reverse image when the vehicle is in reverse gear (rear camera included). An optional 360-degree panoramic function allows you to view the surroundings clearly.
Maintenance
To ensure the longevity and optimal performance of your YUNTX Car Stereo, follow these general maintenance guidelines:
- Screen Cleaning: Use a soft, lint-free cloth to gently wipe the touchscreen. For stubborn smudges, slightly dampen the cloth with water or a screen-safe cleaner. Avoid abrasive materials or harsh chemicals.
- Software Updates: Periodically check the manufacturer's website or system settings for available software updates to ensure optimal performance and access to new features.
- Environmental Conditions: Avoid exposing the unit to extreme temperatures, direct sunlight for prolonged periods, or excessive moisture.
- Cable Connections: Ensure all cables remain securely connected. Loose connections can lead to intermittent issues.
Troubleshooting
If you encounter issues with your YUNTX Car Stereo, refer to the following common problems and solutions:
- No Power:
- Check all power cable connections.
- Verify the vehicle's fuse for the stereo is intact.
- Ensure the car's ignition is on (ACC power).
- No Sound:
- Check speaker wire connections.
- Ensure volume is not muted or set to zero.
- Verify audio source selection (e.g., Radio, Bluetooth, USB).
- Check DSP settings for any unusual configurations.
- GPS Signal Lost/Inaccurate:
- Ensure the GPS antenna is properly connected and has a clear view of the sky.
- Try restarting the navigation application.
- Update map data if available.
- Bluetooth Connection Issues:
- Ensure Bluetooth is enabled on both the stereo and your phone.
- Delete previous pairings and re-pair the devices.
- Move the phone closer to the stereo.
- CarPlay/Android Auto Not Connecting:
- For wired connection, try a different USB cable.
- Ensure CarPlay/Android Auto is enabled on your phone and the stereo.
- Update your phone's operating system and the stereo's firmware.
If the problem persists after attempting these solutions, please contact YUNTX customer support or the seller for further assistance.
Specifications
Feature | Detail |
---|---|
Operating System | Android 14 |
CPU | Octa Core, 2.0 GHz |
RAM | 8GB |
ROM | 256GB |
Touchscreen | 9-inch IPS-2.5D, 1280x720 resolution |
Audio Output | 4 * 50W |
Bluetooth | Version 5.0 |
Radio IC | NXP TEF7708 (AM/FM/RDS) |
Connectivity | Built-in WiFi, supports external 4G modem |
Video Support | Up to 4K (3840x2160 Pixel) VideoHD 1080P |
Memory Card Support | USB and SD memory card up to 500GB |
Dimensions | 2 x 3 x 1 cm; 2 kg (Product) |
Warranty and Support
This product is manufactured by YUNTX. For information regarding warranty coverage and terms, please refer to the documentation provided with your purchase or contact the seller directly. Standard return policies typically allow for refunds or replacements within 30 days of purchase.
For technical support, troubleshooting assistance beyond this manual, or inquiries about optional accessories (such as the 4G modem or DAB+ tuner), please reach out to the seller or YUNTX customer service channels.