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iDatalink HRN-RR-SU2 Interface Harness

Retain the factory steering wheel audio controls and other factory features with an iDatalink-ready car stereo in select 2012-up Subaru vehicles

Item # 794HRRSU2

This HRN-RR-SU2 interface harness from iDatalink allows you to connect a new iDatalink-ready car stereo in select...

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This HRN-RR-SU2 interface harness from iDatalink allows you to connect a new iDatalink-ready car stereo in select...

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Item # 794HRRSU2

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About the iDatalink HRN-RR-SU2 Interface Harness

iDatalink HRN-RR-SU2 

This HRN-RR-SU2 interface harness from iDatalink allows you to connect a new iDatalink-ready car stereo in select 2012-up Subaru vehicles, working in conjunction with iDatalink's Maestro ADS-MRR module. Once connected, you'll retain the use of your Subaru's steering wheel audio controls. You'll also keep your Subaru's amp and subwoofer (if present), plus you'll also be able to display engine performance data and other vehicle info on your receiver's screen.

iDatalink HRN-RR-SU2 

This HRN-RR-SU2 interface harness from iDatalink allows you to connect a new iDatalink-ready car stereo in select 2012-up Subaru vehicles, working in conjunction with iDatalink's Maestro ADS-MRR module. Once connected, you'll retain the use of your Subaru's steering wheel audio controls. You'll also keep your Subaru's amp and subwoofer (if present), plus you'll also be able to display engine performance data and other vehicle info on your receiver's screen.

The package includes three connectors that plug in between the Maestro module, your Subaru radio's wiring plugs, and your new car stereo. You'll have to solder or splice together this harness's power/ground, illumination, and speaker output wires to the corresponding wires on your aftermarket receiver's wiring harness. The iDatalink harness also supplies the outputs you'll need for a navigation receiver.

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Product highlights:

  • allows installation of a new iDatalink-ready receiver in select Subaru vehicles
  • also requires the Maestro ADS-MRR module
  • retains the use of your steering wheel audio controls, plus factory amp and subwoofer
  • displays engine performance data on touchscreen
  • provides outputs for a navigation receiver
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # HRN-RR-SU2

What's in the box:

  • Radio/vehicle harness
  • Backup camera harness
  • OBDII harness
  • "D" harness
  • "B" harness
  • "A" harness

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iDatalink HRN-RR-SU2 Interface Harness reviews

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iDatalink HRN-RR-SU2 Interface Harness

Crutchfield customer from Point Roberts, WA on 8/28/2019

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I feel weird reviewing a bunmch of wires. I needed them to make my stereo work. Crutchfield attached what was necessary to their harness. It was all worth while, and seems like good quality. I would buy it again if Crutfield said I needed it for another installation.

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iDatalink HRN-RR-SU2 Interface Harness

Crutchfield customer from Red Hill, PA on 7/27/2019

2016 Subaru Crosstrek

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Great match

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iDatalink HRN-RR-SU2 Interface Harness

Crutchfield customer from Staten Island, NY on 7/1/2019

2016 Subaru Impreza

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Harness seemed pretty hard to wire up properly so I paid the additional money for Crutchfield to wire it for me.. beat decision I've ever made.. came professionally wired up and it was a plug and play type of situation after I got all my products..

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Ok

Crutchfield customer from Cypress, TX on 6/3/2019

2016 Subaru WRX

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Works well for the job. Wish came with YouTube video. Firmware update software has problems.

Pros: Puts every in one place.

Cons: Did not go down to enough detail. And no YouTube video from manufacturers

Crutchfield response on

0 of 0 found this helpful

2017 Subaru WRX

Crutchfield customer from Demotte, IN on 4/30/2019

2017 Subaru WRX

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Made the head unit install a whole lot easier, definitely recommend!

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0 of 0 found this helpful

awesome harness, worked like a champ!

Crutchfield customer from Seattle, WA on 2/15/2019

2016 Subaru Forester

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This harness worked like a champ! I was able to install in a day, and although there was one part I was unsure of, the idatalink support staff answered my question immediately. Would definitely use this again on my next install

Pros: Easy to install, worked, great technical support

Cons: None

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0 of 0 found this helpful

iDatalink HRN-RR-SU2 Interface Harness

Crutchfield customer from Summerville, SC on 2/3/2019

2017 Subaru Forester

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Works great! I prefer to untape everything and bundle it so it is more compact when it comes to shoving everything into the dash.

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0 of 0 found this helpful

It's a harness

Crutchfield customer from North Olmsted, OH on 1/25/2019

2017 Subaru WRX STI

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had to modify the harness to work with manual cars in order to get into setup of an alpine ilx-f309. Also, had to use the OBD2 port to keep the rear-view camera functionality.

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iDatalink HRN-RR-SU2 Interface Harness

Crutchfield customer from Snohomish, WA on 1/20/2019

2014 Subaru BRZ

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Ez install

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iDatalink HRN-RR-SU2 Interface Harness

Jeff from Beaverton, OR on 1/1/2019

2015 Subaru Forester

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Worked perfectly for my 2015 Forester. It took a little time to sort out which cable went where, which ones weren't going to be used, etc. So glad I paid extra to have Crutchfield do the wiring for me (ReadyHarness service).

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pre connecorized harness

John from Union, KY on 12/14/2018

2013 Subaru XV Crosstrek

Verified customer (What's this?)
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This review is for the assembly harness that Crutchfield made all the connections for me so that it was literally a plug and play install. Having done multiple stereo installs through the years I will simply say this is a game changer. I will never do another install without this option. Having Crutchfield solder the connections in a bench environment with heat shrink tubing is a far superior solution than wire nuts and electrical tape at my kitchen table. Such a bargain and time saver, highly recommend!

Pros: fast, simple and superior connections that support a quick plug and play install. love it and will never do another install without it.

Cons: None!

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0 of 0 found this helpful

iDatalink HRN-RR-SU2 Interface Harness

Crutchfield customer from Evansville, IN on 12/7/2018

2015 Subaru Outback

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Everything fit as it should. But was very grateful for the excellent help from the Crutchfield support phone line. Couldn't have done it without them.

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iDatalink HRN-RR-SU2 Interface Harness

Carlos from Lutz, FL on 11/9/2018

2016 Subaru WRX STI

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Easy to install, no issues.

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Crutchfield response on

1 of 1 found this helpful

Poor quality, returned

Guest from Houston on 10/25/2018

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It's a simple harness but nonetheless, this was so poorly made that it was shifting and needed to be returned/ replaced. Second one also returned. Had to return the radio too as this seems to be the only game in town for interface modules.

Pros: The harnesses look good

Cons: Defective wiring, was returned.

Crutchfield response on

0 of 2 found this helpful

Makes wiring easier. Necessary.

Eric from Manchestr Ctr , VT on 9/6/2018

2017 Subaru Outback

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Verified employee purchase (What's this?)

This is the magic that lets you wire your radio to your car from the comfort of your kitchen table. Another necessary device but it works well. The instructions are not in the box, you have to go to the iDatalink website to get specific wiring instructions for your car. It looks like you are building a spaceship, but the PDF instructions are well laid out. I printed it in color to help with the wiring. I used shrink-wrap over the connections to make it look professional. Electrical tape is not preferred because it gets so hot behind the radio that electrical tape will be a mess and possibly come undone. Use shrink wrap. You can also get a BIG shrink wrap to cover the entire bundle after shrink-wrapping each individual wire. That will REALLY look professional and be easier to manage. For my Subaru I had 19 wires to connect and heat-shrink. This also has an ODBII cable to connect to compatible headunits. Pretty cool. On the Kenwood, you can display analog gauges for temperature, pressure, RPM, speed, some other stuff. I thought I read somewhere that you can download additional gauges for the Kenwood including a "track-day" package. Between this wiring harness and the Maestro interface module box (also required), it's a miracle all that stuff fit behind the radio. It is SO jammed back there, there is no more room for even a single wire. That's why shrink-wrap is the way to go, to make sure your wiring connections don't come undone when you stuff ever

Pros: Professional wiring harness. Instructions are good but you need to download the PDF from iDatalink.

Cons: Includes Starlink cable for Subaru but my Starlink didn't connect to my radio. Not sure who's fault that is, so I didn't take off a star. Subaru built-in mic didn't work either. I had to use the mic that came with the Kenwood. Again, not sure who is to blame here but I think it's Subaru because their mic wire is proprietary, not a mini-stereo type jack.

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1 of 1 found this helpful

You need this harness

Bryan from Locust Grove, VA on 7/23/2018

2017 Subaru WRX

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This harness made install super easy with the parking brake wire built in

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Crutchfield response on

1 of 1 found this helpful

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<< >>

More details on the iDatalink HRN-RR-SU2 Interface Harness

Stacey B.

Product Research

Features

Subaru Installation Harness: The iDatalink Maestro HRN-RR-SU2 installation harness greatly simplifies the installation of the Maestro RR Car Radio Replacement Interface module (794ADSMRR, sold separately) in select Subaru, Scion, & Toyota vehicles when replacing your factory radio with an iDatalink Serial Port compatible head unit from Kenwood, JVC, Alpine, or Pioneer (click here for a list of fully compatible radios). This installation harness will not work with aftermarket head units that do not feature an iDatalink Serial Port.

Notes: The iDatalink Maestro HRN-RR-SU2 installation harness requires the purchase of the iDatalink Maestro RR (794ADSMRR).

Vehicle Compatibility Chart: Click here for a list of compatible Subaru, Scion, & Toyota vehicles. Or, click here to find out what works with your particular vehicle.

Flashing Module via Weblink Desktop: The iDatalink Maestro RR (ADS-MRR) will need to be loaded with correct firmware before installation. The included USB cable plugs into your computer and allows you to "flash" the Maestro RR with the appropriate firmware to prepare it for installation. Simply download Weblink Desktop (for Windows and Mac) onto your computer to access the appropriate firmware. System requirements include -

  • Windows PC (10/8.1/8/7/Vista/XP/2000) or Mac OS X (Mojave [10.14], HighSierra [10.13], Sierra [10.12], El-Capitan [10.11])
  • Available USB port (version 2.0 or 3.0)
  • 4GB RAM or more
  • 200MB available space on HDD
  • Internet connection

Retained Factory 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 Car Radio Replacement Interface module and HRN-RR-SU2 installation harness.

  • Factory Starlink telematics and SOS buttons (if equipped)
  • Factory amplifier with turn-on & fader (if equipped)
  • Factory steering wheel controls (SWC) with two-function programmability
  • Factory Aux input and backup camera (if equipped)

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 Car Radio Replacement Interface module and HRN-RR-SU2 installation harness.

  • Selectable Performance Gauges
  • Read/Reset Check Engine Codes
  • Vehicle Info (including Tire Pressure Display, Battery Voltage Display, & Door Open Status/Warning)

Navigation Outputs: The HRN-RR-SU2 provides a VSS (vehicle speed sense), Parking Brake, and a Reverse Light output to make installing your compatible aftermarket navigation radio simpler and less time consuming.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
Automatically recommended by the Crutchfield site with my stereo and automobile. [ jmatcuk  Sep 08, 2019 ]
A
check performance engine, tires pressure and other things [ Nhi  Aug 24, 2019 ]
A
Make my install simple and easy with the maestro idatalink [ ERWIN  Apr 20, 2019 ]
A
Looking to keep my current features from my car and wanted to add some as well [ Justin  Feb 18, 2019 ]
A
packaged item [ Christy  Feb 09, 2019 ]
A
Factory integration was a major part of my purchase decision. Based on the comments I'm seeing, my factory controls will be even more versatile than they were with the stock setup! [ Jimmy  Jan 04, 2019 ]
A
I need it [ Eric  Dec 06, 2018 ]
A
recommended [ Jonathon  Oct 11, 2018 ]
A
Specific to my vehicle and the best price was found here at Crutchfield. [ Saifuddin  Jul 24, 2018 ]
A
I wanted to maintain all the functionality provided by my factory head unit to include items such as backup camera and steering wheel controls. [ Charles  Jul 15, 2018 ]
SHOW MORESHOW LESS

1 question already asked

Q
do i need to use obd2 harness? i have a subaru and i want to retain the backup camera, radio, ect. i dont have steering wheel controls or vehicle data that needs to be observed. would this still work without the OBDII port connected? also does the reverse camera need a 12v to 6v step down? thanks
[ Brett  Mar 13, 2019 ]
5 answers
A
Brett, No, you don't need it, but I would highly recommend it. It is pain free to install and provides an array of features. Install it! 12v/6v depends on head unit, I believe.
[ JAMES  Mar 14, 2019 ]
A
Hi Brett. I recently upgraded the stereo in my 2018 Subaru WRX and this is everything that I purchased and needed for the job: Metra 40-LX11 Antenna Adapter, Scosche SU2031B Dash Kit Gloss Black, iDatalink Maestro ADS-MRR Interface Module, iDatalink HRN-RR-SU2 Interface Harness. With that I still have radio, backup camera, and steering wheel controls. Alex Z.
[ Alexander  Mar 14, 2019 ]
A
Hey Brett I wish I could give you a better answer then this but I went aftermarket with everything. I always have the OBD port occupied to receive vehicle info with my Kenwood 9905s. I did not have the oem deck and camera. My camera I installed and all works good. I maintained all steering wheel controls. I had to customize mine for personal use which is a plus for information you want. In addition to a single press of the stearing wheel buttons you can do a long press for an additional function. All information is accurate tire oresssure, RPMS, temps, etc... that is about as much information I can give you. Oh and yes I needed the subaru newest version harness which I have a 2012 outback.
[ Josh  Mar 13, 2019 ]
A
Everything in the pic is what u need. I didn't have to buy anything extra. Idk anything about 12v to 6v. Everything was straight forward
[ Sylvester  Mar 13, 2019 ]
A
The OBDII port is just for tire pressure, check engine codes etc. For the backup camera and radio you shouldnt need it, if you flash the proper firmware on the datalink box it should be a snap
[ Jeff  Mar 13, 2019 ]

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