Mr12volt Audi MMI 3G 3G+ CarPlay & AA Interface A4 A5 A6 A7 Q5 Q7 DSP OEM Mic Support

Wireless Apple CarPlay & Android Auto for Audi MMI 3G / 3G+

Model: P3000-AU3G

Direct MOST Fiber Integration – No AUX

Upgrade your factory Audi MMI 3G / 3G+ infotainment system with MR12volt, adding Wireless Apple CarPlay and Android Auto while preserving full OEM functionality.

Designed for vehicles equipped with Audi MMI 3G / 3G+ and the MOST fiber optic audio system, this interface integrates directly with the factory display, controls, and amplifier through the digital MOST network.

✔ Full factory sound quality

✔ Seamless OEM integration

Compatible Vehicles

Compatible with Audi vehicles equipped with MMI 3G / 3G+ systems and Base, BOSE or Bang & Olufsen audio systems

• Audi A4 (B8) — 2009–2016

• Audi A5 (8T) — 2009–2016

• Audi A6 (C6) — 2009–2011

• Audi A6 (C7) — 2011–2018

• Audi A7 (C7) — 2011–2018

• Audi A8 (4E) — 2009

• Audi Q3 (8U) — 2012–2018

• Audi Q5 (8R) — 2009–2017

• Audi Q7 (4L) — 2010–2015

⚠ Important Installation Notes

• No coding required

• If a factory CD changer is fitted (commonly found in Audi Q7 and A6 C6), it must be disabled during installation

• Professional installation recommended

Direct Digital MOST Integration

Unlike AUX-based CarPlay interfaces that rely on analog audio input, MR12volt integrates directly through the MOST fiber optic network, maintaining the integrity of the factory digital audio path.

AUX-based CarPlay systems

• Use analog signal transmission

• May reduce sound clarity

• Can introduce signal delay

MR12volt MOST integration

✔ No AUX required

✔ Direct digital audio transmission

✔ No analog conversion

✔ Preserves factory sound quality

✔ Compatible with Audi Base, BOSE and Bang & Olufsen sound systems

✔ Works with the factory amplifier

Designed to deliver true OEM-level audio performance.

Control Method

MR12volt is accessed through the factory media menu.

• Select CD in the media source menu to launch the MR12volt interface

• MR12volt simulates the factory CD changer

• Once launched, Apple CarPlay and Android Auto are controlled through the factory MMI controls

Apple CarPlay & Android Auto Connectivity

• Wireless Apple CarPlay & Android Auto

• Wired Apple CarPlay & Android Auto

• Wireless MirrorLink (Android – CarLetter required)

Access navigation, Spotify, Apple Music, Waze, Google Maps, WhatsApp and hands-free calling directly on your factory display.

Camera & Multimedia Support

• Reverse camera input

• Front camera input

• Left / Right blind spot camera input

• Supports aftermarket cameras up to AHD 1080P

• USB video and music playback

OEM Feature Retention

MR12volt preserves the functionality of the original vehicle system, including:

• OEM microphone

• Factory parking sensor display

• Steering wheel controls

• Factory display integration

Switch seamlessly between the original Audi MMI interface and Apple CarPlay / Android Auto.

Advanced Audio Control

• 15-band DSP equalizer

• Independent navigation / media / microphone volume control

• Apple Lossless audio support

• Enhanced Bluetooth call clarity

• Bluetooth audio streaming

Optimized for Audi factory audio systems.

Frequently Asked Questions

Does this require AUX?

No. MR12volt integrates directly through the MOST fiber optic system.

Does it work with BOSE or Bang & Olufsen sound systems?

Yes. Fully compatible with Audi BOSE and Bang & Olufsen audio systems.

How do I access MR12volt in Audi MMI?

• Open the Media menu

• Select CD to launch the MR12volt interface

Does it retain factory cameras?

Yes. Reverse camera and aftermarket camera inputs are supported.

Is this a full head unit replacement?

No. MR12volt is a retrofit interface that integrates with the original factory infotainment system while preserving the existing hardware.

What back camera is recommended for MR12volt?

MR12volt supports any aftermarket rear camera up to AHD 1080P resolution.

Firmware & Long-Term Support

• USB firmware upgrade supported

• Ongoing compatibility updates