Android Auto Audi A4 S4 RS4 B8 | 10.25" Linux Screen Upgrade 2009–2015, MMI 3G/3G+, Wireless Apple CarPlay, OEM 6.5"/7" Screen

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.

Wireless Apple CarPlay & Android Auto

Connect your iPhone or compatible Android phone to the upgraded display via Wi-Fi for Wireless Apple CarPlay and Android Auto. Access supported navigation, calls, messages, music and other smartphone features directly through the upgraded touchscreen.

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 Calls & Music

Connect your phone to the car screen via Bluetooth for hands-free calling and wireless music playback. Make and receive calls through the vehicle audio system and enjoy your phone's music without a wired connection.

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-Based 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.

Hualingan HL-8870-1 Linux

Compatible Vehicles & Years

Audi A4 B8 / 8K Pre-Facelift MMI 3G Basic / 3G High 2009–2011

Audi A4 B8 / 8K Facelift / B8.5 MMI 3G Basic / 3G+ 2012–2015

Audi S4 B8 / 8K Pre-Facelift MMI 3G / 3G High 2009–2011

Audi S4 B8 / 8K Facelift / B8.5 MMI 3G+ 2012–2015

Audi RS4 B8 / 8K B8 MMI 3G / 3G+ 2012–2015

OEM System Requirements

OEM System: Audi MMI 3G / MMI 3G High / MMI 3G+

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.

Hualingan HL-8870-1 Linux

OEM System VS Upgrade System

Upgrade Concept:

Keep the original Audi MMI 3G / 3G+ head unit → Replace the OEM 6.5"/7" display → Add Wireless Apple CarPlay, Wireless Android Auto and modern touchscreen functions.

| Full-Screen Mirroring | OEM system dependent | Supported smartphone mirroring |

| Bluetooth Calls & Music | Original OEM Bluetooth | Bluetooth hands-free calls & music |

Hualingan: 22+ Years of Automotive Electronics Expertise (2004–2026)

Established in 2004, Hualingan has more than 22 years of experience in the automotive electronics industry. We specialize in the research, development, manufacturing and supply of aftermarket in-car entertainment and navigation solutions for global automotive markets.

Our product portfolio includes Android head units, Android screen upgrades, CarPlay retrofit kits, Android Auto solutions and other vehicle-specific infotainment upgrades. Designed for distributors, wholesalers, installers and automotive electronics retailers, our solutions help upgrade factory infotainment systems with modern connectivity and smart features while maintaining a high level of OEM integration.

From OEM radio replacement and Android screen upgrades to CarPlay and Android Auto retrofits, Hualingan provides complete aftermarket solutions for a wide range of vehicle applications.

Why Partner with Hualingan?

22+ Years of Manufacturing Experience

With more than two decades of experience in automotive electronics, Hualingan has developed extensive expertise in vehicle-specific infotainment systems, product development, manufacturing and aftermarket integration.

Vehicle-Specific Solutions

Our products are developed for specific vehicle models and factory infotainment platforms. This allows distributors and installers to offer targeted upgrade solutions rather than generic universal products.

OEM Integration

Our upgrade solutions are designed to work with existing vehicle systems where applicable, including steering wheel controls, factory audio systems, iDrive controls, OEM displays and other vehicle functions.

B2B-Focused Supply

We work with distributors, wholesalers, installers and automotive electronics retailers worldwide. Our goal is to provide reliable products, technical support and consistent service to help our partners grow their aftermarket business.

After-Sales Support for B2B Partners

Reliable technical and after-sales support is an important part of a successful automotive electronics business. Hualingan provides professional support throughout installation, configuration and post-sale service.

1. Technical Support

Installation Guidance

We provide product manuals, wiring information, installation instructions and technical documentation to help installers complete product installation efficiently.

Technical Assistance

Our technical support team can assist with installation questions, wiring, system configuration, software settings and initial product setup.

Troubleshooting Support

When technical issues occur, our team works with partners to identify the cause and provide practical solutions to minimize installation delays and customer downtime.

2. Warranty & RMA Support

Product Warranty

Hualingan products are covered by our standard limited warranty against manufacturing defects. Warranty terms may vary according to product and sales agreement.

RMA Service

We provide a structured Return Merchandise Authorization (RMA) process for defective products and warranty claims, helping partners handle after-sales cases efficiently.

Quality Control

Every product undergoes quality control procedures before shipment. Our quality management process is designed to maintain product reliability and reduce potential after-sales issues.

3. Product Updates & Technical Information

Firmware & Software Updates

Where applicable, we provide firmware and software updates to improve system performance, resolve known issues and maintain compatibility with supported devices and vehicle systems.

Updated Product Information

Partners can access product specifications, compatibility information, installation documentation and other technical materials to support sales and installation.

Marketing Support

We can provide product images, specifications, feature information and other marketing materials to help distributors and retailers present Hualingan products through their websites and sales channels.

4. Long-Term B2B Partnership

We aim to build long-term relationships with distributors, wholesalers, installers and automotive electronics retailers rather than simply supplying individual products.

Our team works closely with business partners to understand market requirements, product applications and installation challenges. For established partners and larger-volume customers, customized cooperation and support arrangements can be discussed according to business requirements.

Hualingan — Your Automotive Electronics Partner

With 22+ years of experience in automotive electronics, Hualingan combines product development, manufacturing capabilities and technical support to provide reliable aftermarket infotainment solutions for global B2B customers.

Whether you are a distributor looking for vehicle-specific Android solutions, an installer requiring reliable technical support, or a retailer expanding your CarPlay and Android Auto product range, Hualingan is ready to support your business.

Contact Our B2B Support Team

Email: Sandy@Hualingan.com

Phone: +86 755 83768287

Business Hours: 9:00 AM – 20:00 PM (China Time)