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iDatalink HRN-RR-VW1 Interface Harness

Connect a new car stereo and retain steering wheel controls in select 2009-up Volkswagen vehicles

Item #: 794HRRVW1

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iDatalink plus VW

iDatalink's HRN-RR-VW1 interface harness allows you to connect a new car stereo in select 2009-up Volkswagen vehicles, working in conjunction with iDatalink's Maestro ADS-MRR module. Once connected, you'll retain the use of your steering wheel audio controls, navigation outputs, and amplifier turn-on in these vehicles. You'll also gain the ability to assign secondary functions to your steering wheel audio controls.

The package includes connectors that plug in between the Maestro module, your Volkswagen's 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.

Extra functionality with an iDatalink-ready receiver

With select radios from Kenwood, Alpine, and Pioneer (see Details for specific models), you'll retain the use of your digital fader with your VW amplified system, along with factory Bluetooth® connectivity. With select Kenwood and Alpine receivers, you'll also be able to set up gauges on your receiver's screen to monitor engine performance, tire pressure, and other functions. With 2014 Kenwood navigation receivers, you can even send navigation information from your new receiver to the multi-function display in your VW's instrument cluster.

Installation note: The HRN-RR-VW1 harness must be used with the iDatalink Maestro ADS-MRR module to connect a new car stereo to your Volkswagen vehicle.

Note: Most vehicles will require additional installation parts — please identify your vehicle if you haven’t done so. You can also call an Advisor for more information.

Product Highlights:

  • works with Maestro ADS-MRR module to allow installation of new receiver in select Volkswagen vehicles
  • retains the use of your steering wheel audio controls and navigation outputs in select vehicles
  • retain Bluetooth with select Kenwood, Alpine, and Pioneer touchscreen receivers
  • displays engine performance data on touchscreen with select Kenwood and Alpine navigation receivers
  • warranty: 1 year
  • Our 60-day money-back guarantee

iDatalink HRN-RR-VW1 Interface Harness Reviews

Average Customer Review:

2 Reviews

Great fit

Written by: JasonC from Utah on April 28, 2015

2009 Volkswagen CC
Crutchfield Customer Review (What's this?)

When I first opened up the boxes for this product, the iDatalink Maestro RR and the Pioneer AVIC8000NEX I thought it was going to be a real nightmare but all things considered the hardest part of the entire install was running the wiring for the GPS antenna, microphone and the USB cables behind the dash. This harness made the connections so simple and easy to follow. Anyone that knows their colors can use this without much difficulty.

Pros: easy to use, great connections

Cons: can't think of any

vm replacement radio harness for idatalink

Written by: Me2 from BFE, OR on August 15, 2014

Crutchfield Customer Review (What's this?)

This is just a radio harness but makes installs pretty much plug and play if using the idatalink RR controller box.

Pros: much easer install process

Cons: requires yet another purchase of another product to add to the cost of the radio swap.

Hands-on research

What's in the box?

Download owner's manual

  • 20" Volkswagen installation harness (for use with Maestro RR interface)
  • 15" Rear-channel RCA harness

Product Research


Overview: The iDatalink Maestro HRN-RR-VW1 installation harness greatly simplifies the installation of the Maestro RR Car Radio Replacement Interface module (794ADSMRR, sold separately) in select Volkswagen vehicles.

Volkswagen Vehicle Compatibility Chart: The iDatalink Maestro HRN-RR-VW1 is compatible with the following Volkswagen vehicles (as of 8/13/2015):

Make Model Year Vehicle Specific Cable
Volkswagen Beetle 2012-2015 HRN-RR-VW1
CC 2009-2015 HRN-RR-VW1
Eos 2010-2014 HRN-RR-VW1
Golf 2010-2014 HRN-RR-VW1
Golf R 2013-2014 HRN-RR-VW1
GTI 2010-2014 HRN-RR-VW1
Jetta 2011-2015 HRN-RR-VW1
Passat 2010-2015 HRN-RR-VW1
Tiguan 2010-2015 HRN-RR-VW1

Retained Features: When installing a compatible Kenwood 2013-up DNX/DNN-series head unit, Alpine INE-W957HD/X008/X009, or 2014-up Pioneer AVIC-NEX series receivers, the iDatalink Maestro RR and HRN-RR-VW harness retains the following factory features.

  • Steering Wheel Control
  • Bluetooth Phone & Music
  • Analog or Digital Amp with Turn-On, Fader, and Gain
  • Song/Artist Info & Caller ID on Multi-Function Display
  • Climate Status Screen (Kenwood & Alpine only)
Note: When installing an aftermarket head unit without the iDatalink Serial Port, only steering wheel control and amplifier turn-on on are retained.

Extra Features: The follow extra features are retained when replacing your aftermarket head unit with a compatible iDatalink Serial Port head unit from Kenwood or Alpine using the Maestro RR Car Radio Replacement Interface module and HRN-RR-VW harness.

  • Performances Gauges
  • Vehicle Information (Doors, Check Engine)
  • On-Screen Parking Sensor Display
  • Navigation Info on Multi-Function Display (Kenwood only)

Connections: The iDatalink Maestro HRN-RR-VW1 installation harness contains one large Molex connector which plug into your factory radio harness. On the other end of the harness are four multi-pin connectors which plug into the Maestro RR Car Radio Replacement Interface module (794ADSMRR, sold separately). In addition, you will need to hardwire the power/ground, illumination, speaker, and navigation output leads of the HRN-RR-VW1 harness to your aftermarket head unit's wiring harness.

Note: When using the HRN-RR-VW1 installation harness, you will not use the additional harnesses that are included with the Maestro RR Car Radio Replacement Interface module (794ADSMRR, sold separately).

Wire Code Chart:

Wire Color Function
Red +12 Volt Accessory
Yellow +12 Volt Constant
Black Ground
Blue/White Amp Turn-On
Orange Illumination
White Left Front Speaker +
White/Black Left Front Speaker -
Gray Right Front Speaker +
Gray/Black Right Front Speaker -
Green Left Rear Speaker +
Green/Black Left Rear Speaker -
Violet Right Rear Speaker +
Violet/Black Right Rear Speaker -
Brown Telephone Mute
Pink VSS
Violet/White Reverse Gear
Light Green Parking Brake
Yellow/black Foot Brake

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