HL-8870-1 Linux
Hualingan
Audi A4, Audi S4, Audi RS4
Audi B8 8K
2009, 2010, 2011, 2012, 2013, 2014, 2015
Audi MMI3G / MMI3G+ with 6.5" / 7"
Linux System
8.8 inch Touch Srceen
Hualingan Linux CarPlay Screen Upgrade
Hualingan Linux Touch Screen Replacement
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Hualingan Linux CarPlay Screen Upgrade for Factory OEM Systems
Upgrade your factory display with a Factory-Fit Touch Screen Upgrade featuring Wireless Apple CarPlay and Android Auto. Designed for selected vehicle models and OEM configurations, the upgraded screen works with the compatible factory head unit to add modern smartphone connectivity while maintaining a clean, OEM-style appearance.
Wired & Wireless Apple CarPlay & Android Auto
Connect your iPhone or compatible Android phone to the upgraded display via Wi-Fi for USB or Wired & Wireless Apple CarPlay and Android Auto. Access supported navigation, calls, messages, music and other smartphone features directly through the upgraded touchscreen.


Wireless Full-Screen Smartphone Mirroring
Use Wi-Fi smartphone connectivity to mirror supported phone content directly to the car screen. Full-screen mirroring provides a larger display for compatible apps, navigation, media and other supported content, making everyday smartphone features easier to view and control from the upgraded display.

Bluetooth Audio Streaming & Hands-Free Calling & Steering Wheel Controls
Connect your smartphone via Bluetooth for hands-free calling and wireless audio streaming. Make and receive calls through your vehicle’s audio system, stream your favorite music wirelessly, and use steering wheel controls to manage calls and audio while driving.

Factory & Aftermarket Backup Camera Support
Supports OEM factory backup cameras and aftermarket backup cameras, allowing you to retain the original camera when compatible or add a new rear-view camera.

Keep Your Compatible OEM System
Unlike a complete head unit replacement, this solution is designed to work with the original factory system on compatible vehicles. Depending on the vehicle and OEM configuration, supported functions such as the original audio system, steering wheel controls, vehicle settings and backup camera can be retained
Factory-Fit Touch Screen Upgrade
The vehicle-specific design provides a clean integration with the original dashboard. The upgraded touchscreen is designed to look and feel like part of the factory interior while providing a larger, more modern and intuitive user interface.


Linux System
Built on a dedicated Linux-based platform, the system is optimized for Wireless Apple CarPlay, Android Auto, smartphone mirroring, Bluetooth calling and Bluetooth music. It provides modern connectivity without requiring a complete replacement of the original factory infotainment system.

Vehicle-Specific Compatibility
Hualingan develops screen upgrades according to different OEM systems, screen sizes, connectors and vehicle configurations. Before ordering, please confirm your vehicle model, production year, original screen size and OEM head unit to ensure the correct application.
A Practical OEM Screen Upgrade
For compatible vehicles, this solution adds modern smartphone connectivity while preserving the familiar OEM environment. It is designed for drivers who want Wireless Apple CarPlay, Android Auto, full-screen smartphone mirroring, Bluetooth calls and Bluetooth music without replacing the entire factory head unit.
Note: Available functions, retained OEM features, screen size, mirroring compatibility and installation requirements vary by vehicle model and factory configuration. Please check the specific vehicle compatibility information before purchase.ux
Linux System VS Android System
Linux CarPlay Screen Upgrade: Your smartphone must be connected via Wi-Fi to access supported apps and content through Apple CarPlay, Android Auto or phone mirroring.
Android Screen Upgrade: No smartphone connection is required. The screen runs Android independently, so you can connect it to the internet, download and install apps directly on the screen, and use them without your phone.

8.8" Audi Linux CarPlay Screen for Car Audi A4 S4 RS4 Factory-fit OEM Replacement, No Wire Cutting
Compatible Vehicles & Years
Audi A4 S4 RS4 B8 / 8K MMI 3G / 3G+ 2009–2015
OEM System Requirements
OEM System: Audi MMI 3G / MMI 3G High / MMI 3G+ (Audi multimedia Head Unit)
Original Display: 6.5" or 7" factory screen
Audio Input: Factory AUX or AMI, depending on vehicle configuration.AUX / AMI Compatibility
With AUX: Connect directly to the factory AUX input. No AMI-to-AUX adapter is required.
With AMI: An AMI-to-AUX adapter is required for audio connection.
Fitment Note
Important: Model year is for reference only. Fitment depends on the original factory radio system and screen configuration. Please confirm that your vehicle has a 6.5" or 7" Audi MMI 3G / MMI 3G High / MMI 3G+. If you are unsure, send us a clear photo of the original dashboard and radio system for compatibility verification.

Upgrade the factory infotainment system of the Audi A4/S4/RS4 B8 with a 10.25" touchscreen designed for MMI 3G and MMI 3G+ systems. The upgrade adds wired and wireless Apple CarPlay, Android Auto and modern smartphone connectivity while retaining key factory functions.
| Feature | Original OEM System | Hualingan Upgrade System |
|---|---|---|
| Display | Original 6.5" / 7" OEM Screen | 10.25" HD Touchscreen |
| OEM Head Unit | Audi MMI 3G / 3G+ | Original OEM Head Unit Retained |
| Apple CarPlay | Not Supported Natively | Wireless Apple CarPlay |
| Android Auto | Not Supported Natively | Wireless Android Auto |
| Smartphone Mirroring | OEM System Dependent | Full-Screen Smartphone Mirroring |
| Touchscreen Control | Original OEM Controls | 10.25" Touchscreen + Original Controls |
| GPS Navigation | Audi Factory Navigation, if equipped | Smartphone Navigation via CarPlay / Android Auto |
| Online Apps | Limited by Original MMI System | Access Supported Smartphone Apps |
| Bluetooth Music | OEM System Dependent | Bluetooth Music & Hands-Free Calling |
| Factory MMI | Original Audi MMI Interface | OEM MMI Functions Retained |
| Steering Wheel Controls | Original Factory Controls | Compatible Steering Wheel Controls Retained |
| Factory Touch Controls | OEM Controls | Compatible Factory Touch Controls Retained |
| Screen Size | 6.5" / 7" | 10.25" |
| User Interface | Original Audi Interface | Modern Touchscreen Interface |
| Backup Camera | OEM / Vehicle Configuration Dependent | Backup Camera Input Supported |
Upgrade Concept:

Hualingan: 22+ Years of Automotive Electronics Expertise (2004–2026)
Established in 2004, Hualingan is an automotive electronics manufacturer specializing in vehicle-specific infotainment upgrade solutions for global aftermarket markets.
Our product portfolio includes Android Screen Upgrades, Android Radio Upgrades, CarPlay Retrofit Solutions and Android Auto Solutions, developed for distributors, wholesalers, professional installers and automotive electronics retailers.
From OEM radio replacement and screen upgrades to CarPlay and Android Auto retrofits, Hualingan develops solutions designed to integrate with existing factory systems while adding modern connectivity and smart features.
Why Partner with Hualingan?
22+ Years of Industry Experience
With more than two decades of experience in automotive electronics, Hualingan combines product development, engineering, manufacturing and aftermarket integration capabilities.
Independent R&D & Custom Development
Hualingan invests in complete vehicles, OEM screens and factory head units for independent product development and real-vehicle testing.
Our engineering capabilities include:
* Custom plastic and metal tooling
* Exterior and structural design
* PCB hardware development
* Vehicle-specific interfaces
* CANBUS and factory-system integrationRather than relying solely on generic market designs, we develop vehicle-specific solutions based on actual vehicle configurations and installation requirements.
200+ Vehicle Models Tested
Different vehicle brands and markets use different CAN protocols, factory infotainment systems and hardware configurations. Our engineering team has conducted hands-on testing and calibration across 200+ vehicle models, helping us develop solutions with precise fitment, broad factory-system compatibility and stable performance.
Vehicle-Specific Integration
Our products are developed around specific vehicle platforms and OEM systems. Where applicable, solutions can retain factory functions such as steering wheel controls, factory audio systems, OEM displays, iDrive controls and backup cameras.
B2B Manufacturing & Supply
We work with distributors, wholesalers, professional installers and automotive electronics retailers worldwide, providing product supply, technical documentation, installation guidance and ongoing after-sales support.
After-Sales & Technical Support
Hualingan provides B2B support throughout installation and product use, including:
* Installation Guidance — Manuals, wiring information and installation documentation
* Technical Assistance — Support for wiring, configuration, software settings and setup
* Troubleshooting — Practical technical assistance for installation and product issues
* Warranty & RMA — Structured support for warranty claims and defective products
* Firmware & Product Updates — Updates where applicable to maintain supported system compatibility
* Marketing Materials — Product images, specifications and technical information for sales channels
Long-Term B2B Partnership
Hualingan focuses on long-term cooperation with automotive electronics businesses rather than one-time product supply. We work with partners to understand market requirements, vehicle applications and installation challenges, with customized cooperation and support available for established and higher-volume customers.
Hualingan — Automotive Electronics Manufacturer Since 2004
With 22+ years of industry experience, independent R&D, custom tooling, hardware development and real-vehicle testing across 200+ vehicle models, Hualingan provides vehicle-specific automotive electronics solutions for global B2B partners.
Independent R&D · Custom Tooling · Hardware Development · Vehicle-Specific Integration · Manufacturing · Technical Support.
Contact Our B2B Support Team
Sandy: sandy@hualingan.com (B2B Distributor)
Contact Our Amazon Support Team
Lingus: aurora@hualingan.com (Amazon European)
Summer: abel@hualingan.com (Amazon US, Canada, Mexico, Australia)
Phone: +86 755 83768287
Business Hours: 9:00 AM – 20:00 PM (China Time)
