Idatalink Maestro HRN-HRR-AU1 for Select AUDI Vehicles 2002-2015. Replace the factory radio while retaining steering wheel controls & use of factory amplifier. (*ADS-MRR or ADS-MRR2 module required)
About the Idatalink HRN-HRR-AU1 Vehicle-specific Harness
Idatalink's HRN-HRR-AU1 wiring adapter allows you to connect a new Idatalink-compatible car stereo in Select AUDI Vehicles 2002-2015, working in conjunction with Idatalink's Maestro ADS-MRR2 module (sold separately). Once connected, you'll retain the use of your steering wheel audio controls and facroty amp in these vehicles.
The package includes connectors that plug in between the Maestro module, your factory radio's wiring plugs, and your new car stereo. You'll have to solder or splice together this harness's power/ground, illumination, speaker, and navigation output wires to the corresponding wires on your aftermarket receiver's wiring harness.
An Idatalink-ready car stereo takes full advantage of this harness
If you're buying a compatible Idatalink-ready car stereo, you'll enjoy the outstanding performance of your receiver, plus seamless touchscreen control over most of the factory features in select AUDI-built vehicles, including your backup camera and vehicle settings menu. You'll also appreciate the additional features added by the adapter, including the ability to view performance gauges and vehicle information on the screen with select Idatalink-ready receivers. This harness features an in-line head-unit connector harness, which will plug into their new "Head-unit direct" harnesses for select radio brands. If you're installing a radio that doesn't work with a "Head-unit direct" harness, you simply cut off the plug and connect the wires to the harness included with your new radio.
Retain factory features
With select Idatalink-compatible radios from Alpine, JVC, Kenwood, Pioneer, and Sny, you'll be able to retain the use of these factory features:
◾Audi's multi-function display
◾steering wheel controls
◾use of the factory amplifier, including balance and fade control

Extra features with an Idatalink-ready car stereo
If you're buying a compatible Idatalink-ready car stereo, you'll be able to display gauges and vehicle info on your receiver's screen, plus read and reset engine codes.
Product highlights:
◾Allows installation of new receiver in select Audi vehicles (also requires the Maestro ADS-MRR or ADS-MRR2 module)
◾Retains the use of your steering wheel audio controls and factory amp in select vehicles
◾Retains multi-function display with Idatalink-ready radios
◾Displays engine performance data on touchscreen with Idatalink-ready radios
Features
Audi Harness: The Idatalink Maestro HRN-HRR-AU1 installation harness greatly simplifies the installation of the Maestro RR or RR2 Car Radio Replacement Interface module (sold separately) in select Audi vehicles when replacing your factory radio with an Idatalink Serial Port compatible head unit from Kenwood, JVC, Alpine, Sny, and Pioneer; or other aftermarket head unit.
Retained Features: The following factory features (if applicable) are retained when replacing your factory radio with a compatible Idatalink Serial Port head unit from Kenwood, JVC, Alpine, or Pioneer using the Maestro RR or RR2 Car Radio Replacement Interface module and HRN-HRR-AU1 installation harness.
◾Factory Amplifier: Retains factory amplifier with balance and fade control.
◾Steering Wheel Controls: Factory steering wheel controls are retained with two function buttons and expandable radio functions.
◾Multi-Function Display: Retains factory multi-function display (MFD) to indicate audio source, song/artist/album information, and Caller Id.
Extra Features: The following Extra features are added when replacing your aftermarket head unit with a compatible Idatalink Serial Port head unit from Kenwood, JVC, Pioneer, or Alpine using the Maestro RR or RR2 Car Radio Replacement Interface module and HRN-HRR-AU1 installation harness.
◾Vehicle Info: Read/Reset Engine Codes.
◾Gauges: Selectable Performance Gauges and "Track Pack" Gauges
◾Outputs: The HRN-HRR-AU1 provides Navigation, Accessory Power, and Illumination Outputs to make installation simpler.
Navigation: Parking Brake, Reverse Light, and VSS (Vehicle Speed Sense).
Accessory Power Output: 12V/15A Accessory Power Output
Illumination Output: Illumination Output
What's in the box:
◾Idatalink HRN-HRR-AU1 Vehicle-specific Harness
◾Vehicle harness (style 1)
◾2-Piece vehicle harness (style 2)
◾Front preout harness
◾Rear preout harness
◾OBDII connector harness

*INSTALLATION NOTE: This HRN-HRR-AU1 car stereo installation T-harness requires the purchase of the Idatalink Maestro ADS-MRR or ADS-MRR2 Interface Module (sold separately) and an Idatalink compatible aftermarket car stereo unit and it's corresponding Idatalink Maestro Car Stereo Head-Unit Harness. The HRN-HRR-AU1 supports Idatalink's Direct T-Harnesses (sold separately) for direct connection to select Idatalink Serial Port compatible head units (ACC-HU-ALP1 (Alpine), ACC-HU-PIO1 (Pioneer), ACC-HU-SON1 (Sny), ACC-HU-KEN1 (Kenwood/JVC with 22-Pin Connector) or ACC-HU-KEN2 (Kenwood/JVC with 16-Pin Connector) Installation T-Harness. Sold separately.) - replacing the wiring harness that comes with your aftermarket stereo (some hardwiring may still be required). If connecting to an aftermarket headunit that does not support an Idatalink Direct T-Harness, you'll need to cut-off and remove the 20-pin black connector from the HRN-HRR-AU1 harness and each wire spliced directly to the aftermarket radio's corresponding wire.
MFR#: HRN-HRR-AU1
This Idatalink Maestro HRN-HRR-AU1 T-Harness replaces the HRN-RR-AU1.