iDatalink HRN-RR-CH2 Interface Harness

Connect a new car stereo and retain steering wheel audio controls and factory amp in select 2004-10 Chrysler-made vehicles

Item #: 794HRRCH2

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3 Reviews

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iDatalink meets Chrysler

iDatalink's HRN-RR-CH2 interface harness allows you to connect a new car stereo in select 2004-10 Chrysler, Dodge, and Jeep vehicles, working in conjunction with iDatalink's Maestro ADS-MRR module. Once connected, you'll retain the use of your steering wheel audio controls and your factory amp in these vehicles.

The package includes connectors that plug in between the Maestro module, your Chrysler 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.

Installation note: The HRN-RR-CH2 harness must be used with the iDatalink Maestro ADS-MRR module to connect a new car stereo to your Chrysler-made vehicle.

Note: Most vehicles will require additional installation parts — please identify your vehicle if you haven’t done so, then check here for a list of parts. 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 Chrysler vehicles
  • retains the use of your steering wheel audio controls and factory amp in select vehicles
  • warranty: 1 year
  • Our 60-day money-back guarantee

iDatalink HRN-RR-CH2 Interface Harness Reviews

Average Customer Review:

3 reviews
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idatalink doesn't deliver.

Written By Postman, Florida on Sunday, June 21, 2015

Crutchfield Customer Review (What's this?)

Chose the IDatalink Maestro because it promised the most when paired with my Pioneer AVIC-7000NEX, I was wrong. Per IDatalink's own latest manual for my Grand Cherokee SRT8 "retains steering wheel controls, Uconnect, Uconnect Bluetooth, and more!". More? Do tell because all I got was the steering wheel controls, nothing else. The install instructions were outdated "latest from their website" and I later found I didn't need to hook up one supplied cable or splice in the OBD2 connections.. Two stars for keeping steering wheel controls and factory amp (which I don't need). Also since it was their harness they could've supplied backup cam and gps adapters. Please note Crutchfield isn't responsible for these issues and they did throw in the IDatalink and harness at quite a discount with the head unit.

Pros: retains steering wheel controls, and factory amp.

Cons: Overpriced, doesn't deliver as promised, bulky with harnesses.

no issues.

Written By G Money, Scarborough, ME on Friday, January 09, 2015

Crutchfield Customer Review (What's this?)

I took this to a shop to install in my 2007 Chrysler 300C. It was used on the Kenwood DDX8901hd head unit. no issues at all.

Pros: works flawlessly

Cons: none

Almost works

Written By Ken C, Lunenburg, MA on Thursday, October 23, 2014

Crutchfield Customer Review (What's this?)

Cable makes install a breeze, but it is not without it's limits. First of all, if you connect it as instructed you will lose GPS audio. To fix this you have to reverse the speaker connections (front to back and back to front - or white to black and black to white). That will route your front speaker output to the rear input which is the only input used. Another problem is the pinout on one of the connectors was wrong, so if odbii functions won't work, you likely have a cable that is misconfigured like mine was... You need to move a couple pins around to make it work (tech support helped with this, but after I spent hours trying to figure out why it wouldn't work). The cable does not cover the rear camera, so you have to do that yourself. It is simple to do, so it would have been a nice addition to the cable (pins 1 and 2 of the vehicle c3 connector have to feed a male rca jack, this cable only covers c1 and c2). It was quicker than hard wiring everything from scratch, but could have been better with very little extra effort from the mfg.

Pros: Easy hookup, minimizes wiring, keeps factory harness intact

Cons: Unclear instructions in some cases. Defective pinout. Requires soldering of wires you don't need (rear speaker output isn't actually used... It only takes 1 set of inputs and fades digitally, so the inputs have to be front to get GPS audio).

Hands-on research

What's in the box?

Download owner's manual

  • Chrysler/Dodge/Jeep installation harness (for use with Maestro RR interface)

Product Research


Overview: The iDatalink Maestro HRN-RR-CH2 installation harness greatly simplifies the installation of the Maestro RR Car Radio Replacement Interface module (794ADSMRR, sold separately) in select Chrysler, Dodge, and Jeep vehicles.

Vehicle Compatibility Chart: The iDatalink Maestro HRN-RR-CH2 installation harness is compatible with the following 2004-up Chrysler/Dodge/Jeep vehicles (as of 4/4/2014):

Make Model Year
Chrysler 300 2005-2007
PT Cruiser 2006-2010
Dodge Caliber 2007-2008
Charger 2006-2007
Dakota 2005-2007
Durango 2004-2007
Magnum 2005-2007
Ram 2500/3500 2009
Ram 1500 2006-2008
Jeep Grand Cherokee 2005-2007
Patriot 2007-2008
Note: Please consult Crutchfield's Outfit My Car to see if your vehicle is compatible and what additional accessories will be needed.

Connections: The iDatalink Maestro HRN-RR-CH2 installation harness contains two Molex connectors 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-CH2 harness to your aftermarket head unit's wiring harness.

Note: When using the HRN-RR-CH2 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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