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iDatalink HRN-RR-TO2 Factory Integration Adapter

Connect a new car stereo and retain steering wheel controls and factory amp in select Toyota-made vehicles

Item # 794HRRTO2

iDatalink's HRN-RR-TO2 wiring adapter works in conjunction with iDatalink's Maestro ADS-MRR module, allowing you...

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iDatalink's HRN-RR-TO2 wiring adapter works in conjunction with iDatalink's Maestro ADS-MRR module, allowing you...

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About the iDatalink HRN-RR-TO2 Factory Integration Adapter

iDatalink's HRN-RR-TO2 wiring adapter works in conjunction with iDatalink's Maestro ADS-MRR module, allowing you to connect a new car stereo in select 2012-up Toyota-made vehicles, Once connected, you'll retain the use of your steering wheel audio controls and your factory amp in these vehicles.

iDatalink working with Toyota

iDatalink's HRN-RR-TO2 wiring adapter works in conjunction with iDatalink's Maestro ADS-MRR module, allowing you to connect a new car stereo in select 2012-up Toyota-made vehicles, 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 and your factory radio's wiring plugs. 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 Toyota-built vehicles. You'll also appreciate the additional features added by the adapter, including the ability to view performance gauges and vehicle information on the radio screen.

Installation Note: The HRN-RR-TO2 adapter must be used with the iDatalink Maestro ADS-MRR module to connect any new car stereo to your Toyota-made vehicle.

READ LESS

Product highlights:

  • allows installation of a new car stereo in select Toyota vehicles (also requires the Maestro ADS-MRR module)
  • retains the use of your steering wheel audio controls and factory amp
  • retains select factory features and displays performance data on touchscreen with select Alpine, JVC, Kenwood and Pioneer receivers
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # HRN-RR-TO2

What's in the box:

  • 22" Vehicle/radio harness
  • 22" Backup camera harness
  • 50" OBD harness

Customer reviews

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iDatalink HRN-RR-TO2 Factory Integration Adapter reviews

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iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Corpus Christi, TX on 9/2/2019

Verified customer (What's this?)
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Must have for any radio install with the maestro! Installation is a breeze, color coded and all.

Pros:

Cons:

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0 of 0 found this helpful

You need this!

Crutchfield customer from Cedar Rapids, IA on 8/30/2019

2018 Toyota Tundra

Verified customer (What's this?)
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Great adapter helped the transition from stock to aftermarket radio. And the directions were simple to follow thanks again.

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Better than OEM interface!

Crutchfield customer from Cuyahoga Falls, OH on 7/10/2019

2018 Toyota 4Runner

Verified customer (What's this?)
Verified employee purchase (What's this?)

Works fantastically in my 2018 4Runner Limited! Integrates with the iDataLink system so well that I now have graphical displays on the Kenwood H/U (not available with the OEM head unit) showing the TMPS and gauges like rpm, volts etc. Great product!.

Pros: Easy to install with the Crutchfield ready harness

Cons: So many wires... define purchase the ready harness

Crutchfield response on

0 of 0 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Shinnston, WV on 6/18/2019

2015 Toyota Tundra

Verified customer (What's this?)
Verified employee purchase (What's this?)

so nice to be able to keep the factory steering wheel controls and back up camera, was able to keep the factory installed sirrius antennae but had to order another part that was not with the adapter. i would also add pay the extra to have the crutchfied harness all put together for you, wow what a bunch of wires, would have taken days to figure out!

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Crutchfield response on

0 of 0 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Wilmington, NC on 6/18/2019

Verified customer (What's this?)
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I very satisfied with the product I purchase.

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Cons:

Crutchfield response on

0 of 0 found this helpful

Great product

Crutchfield customer from Oxford, AL on 5/24/2019

2018 Toyota 4Runner

Verified customer (What's this?)
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Worked as advertised. Made install a breeze.

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Woked in my 4Runner

Crutchfield customer from Manteca, CA on 5/12/2019

2017 Toyota 4Runner

Verified customer (What's this?)
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Works well in my 2017 Toyota 4Runner. It retained all the steering wheel controls that I had on the factory unheard unit. The installation instructions could have been better.

Pros: Works, retains all steering wheel control functions

Cons: Instructions a bit difficult to follow.

Crutchfield response on

0 of 0 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Brick, NJ on 5/6/2019

2018 Toyota Corolla

Verified customer (What's this?)
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makes the install a piece of cake. all my steering wheel options are still working.....

Pros: easy install

Cons:

Crutchfield response on

0 of 0 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Vidor, TX on 5/5/2019

2019 Toyota 4Runner

Verified customer (What's this?)
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Product was perfect.

Pros:

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Crutchfield response on

0 of 0 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Brian from Riverton, UT on 5/2/2019

2015 Toyota Corolla

Verified customer (What's this?)
Verified employee purchase (What's this?)

Worked in my 2015 Corolla. No complaints.

Pros: It fit

Cons: Price

Crutchfield response on

0 of 0 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Georgetown, KY on 4/26/2019

2017 Toyota Tacoma

Verified customer (What's this?)
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all OEM features work. Excellent product at great price

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Philadelphia, PA on 4/23/2019

2013 Toyota RAV4

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Good service and fast shipping made job very easy.

Pros:

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Crutchfield response on

0 of 0 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Seattle, WA on 4/22/2019

2019 Toyota 4Runner

Verified customer (What's this?)
Verified employee purchase (What's this?)

Great adapter. Wish I had also purchased the radio through Crutchfield so that they could have done all the wiring. However, the wiring connections were pretty simple especially with the IDatalink instructions.

Pros: Easy for plug and play

Cons: Instructions should indicate where a powered antenna (powered for reception) should be connected. I had to make a change in the wiring at the last moment. Not a big deal, but had me wondering.

Crutchfield response on

0 of 0 found this helpful

A must if wanting to use steering wheel buttons

Crutchfield customer from Guaynabo, PR on 3/22/2019

2015 Toyota Tundra

Verified customer (What's this?)
Verified employee purchase (What's this?)

This is a must if doing an aftermarket head unit swap out (2015 Tundra). Simple and easy to follow instructions that made the switch easy and fast along with installing the Maestro module. This is needed to connect the module to your steering wheel and headunit.

Pros: Plug and play system makes install of an aftermarket HU easy and effortless.

Cons: Labeling on the connectors would help out even more to identify which connects go where more quickly when setting up the connections.

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0 of 0 found this helpful

Install in a 2014 Rav4

cut IT for from Bothell, WA on 3/19/2019

2014 Toyota RAV4

Verified customer (What's this?)
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I would fully recommend purchasing this to keep all the features of your car that you have become used to in the past. Installation was simple as plug and play.

Pros: Plug and play kept all steering wheel functions along with usb ports

Cons: Non

Crutchfield response on

1 of 1 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Rosamond, CA on 3/17/2019

2016 Toyota 4Runner

Verified customer (What's this?)
Verified employee purchase (What's this?)

Highly recommended - couldn't have done the job nearly as quickly without it. High quality and colour coded to match. The instructions could have been a little more clear. 2 wires were not needed, but had to call tech support to find out.

Pros: Don't leave home without it. Highly recommended.

Cons: There were two wires that weren't needed for the installation but the instructions were not that clear that they were NOT needed.

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0 of 0 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Bradley from Austin, TX on 2/27/2019

2016 Toyota Tundra

Verified customer (What's this?)
Verified employee purchase (What's this?)

Like the wiring harness but the layout of the interface with Maestro Datalink is kind of difficult with the short leads and arrangement of the plugs on the Maestro. The molex connectors are not as high of a quality as my factory harness and came undone when I installed the stereo making it necessary to remove it. I then had to secure the two connectors with wire ties to keep them together

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0 of 1 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Lithonia, GA on 2/24/2019

2015 Toyota Sienna

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Excellent product works great

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Cons:

Crutchfield response on

0 of 0 found this helpful

Must have upgrade

Greg from Randleman, NC on 2/24/2019

2014 Toyota Camry

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Verified employee purchase (What's this?)

Very nice upgrade added tpms readouts and all kinds of engine telemetrics to my ride.

Pros:

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Crutchfield response on

1 of 1 found this helpful

Perfect

Stephen from Sycamore, IL on 1/6/2019

2015 Toyota Tundra

Verified customer (What's this?)
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Works great in my 2018 tundra

Pros: Integrated well with factory steering buttons & tpms info

Cons: Need to leave obdii unplugged if you have 12volt brand remote starter. Starter sends intermittent power via obdii while truck is off with no key and causes radio to also turn on/off without key. No loss in functionality leaving unplugged, only check engine feature is lost in radio. No big deal

Crutchfield response on

3 of 3 found this helpful

Perfect fit for my 2018 RAV4

Lou from Flagstaff, AZ on 12/11/2018

2018 Toyota RAV4

Verified customer (What's this?)
Verified employee purchase (What's this?)

This harness worked flawlessly to couple the iDatalink Maestro RR interface to the Pioneer AVH-2440NEX stereo in my 2018 Toyota RAV4. All the connectors attached to my factory plugs without any issues. The wires are plenty long which made attaching to the stereo harness easy.

Pros: Wires were long enough to make connecting to the stereo's harness easy. Connectors attached to vehicle connectors perfectly. Instructions on how to connect this harness to the stereo harness were clear.

Cons: None.

Crutchfield response on

1 of 1 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Michael from Austin, TX on 12/4/2018

2014 Toyota Highlander

Verified customer (What's this?)
Verified employee purchase (What's this?)

Essential, and easy. Sat down with the harness, the Maestro, and the new head unit to a 45 minute TV show and was finished before the credits rolled. Super clean and easy.

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Crutchfield response on

0 of 0 found this helpful

Easy connections

Crutchfield customer from Prescott Valley, AZ on 11/22/2018

2018 Toyota RAV4

Verified customer (What's this?)
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They work as they are supposed to work.

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

OEM Quality

Johnny-Don from Luling, TX on 10/29/2018

2014 Toyota Tundra

Verified customer (What's this?)
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It was all there, and all plugged in nicely. OEM quality. For my particular truck (2014 Tundra WITH JBL) I had to cut out a resistor per instructions from iDatalink so my new radio (iLX-F309) would power off with the truck. After that it worked fine.

Pros: Quality, Ease of use, length

Cons:

Crutchfield response on

1 of 1 found this helpful

Seamless integration and ease of use

Shawn from Mooresville, NC on 9/9/2018

2015 Chevrolet Silverado 1500

Verified customer (What's this?)
Verified employee purchase (What's this?)

This piece made the integration into my vehicle seamless. The use of all the features my car came with, integrated into the Kenwood was awesome.

Pros: All the features of my car like steering wheel controls and the data from tpms to rpms and everything in between

Cons: Lots of wires to connect (get Crutchfield to prewire it to your receivers plug when you buy them together, it will be $$ well spent)

Crutchfield response on

0 of 0 found this helpful

Perfect integration

Matt from Orange County, CA on 8/20/2018

2015 Toyota Camry

Verified customer (What's this?)
Verified employee purchase (What's this?)

2015 Camry, seamless install and integration with iMaestro. The install manual for this is great, spot on. Only a couple of notes for this specific model: cut off the extra RCA cables (not the speaker ones), they don't attach to anything and make the harness more bulky. A lot of stereos won't have the pink speed wire, that's no issue because it's transmitted via the serial cable that comes with the iMaestro module. Don't connect the green e-brake wire. Instead buy a bypass module, then you can access all your stereo functions without putting it in park. For this vehicle generation and model you'll also toss out the 'extra' OBD II connector. Other than that, a trained monkey could install this turkey.

Pros: Everything laid out exactly in the instructions

Cons: Unneccessary OBD II cable for some models, needs a separate bypass module if desired

Crutchfield response on

2 of 2 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Del Rio, TX on 7/19/2018

2018 Toyota Corolla

Verified customer (What's this?)
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Was so easy just plug and play

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Las Cruces, NM on 7/16/2018

Verified customer (What's this?)
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Great product works excellent makes all your stock features work again an some extra features. I am using this kit on a 2018 Toyota Tundra crewmax trd off-road

Pros:

Cons:

Crutchfield response on

2 of 2 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from West Jordan, UT on 7/14/2018

2012 Toyota Camry

Verified customer (What's this?)
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Huge help! Saved a lot of time anyone is question of buying this item should stop reading this and buy it. You can thank me later.

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Works

Crutchfield customer from Covina, CA on 7/1/2018

2014 Toyota RAV4

Verified customer (What's this?)
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It worked flawlessly on my 06 Lexus RX. Easy to setup love it

Pros:

Cons:

Crutchfield response on

1 of 1 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Schaumburg, IL on 6/20/2018

2016 Toyota Highlander

Verified customer (What's this?)
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Its easy to install and

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Simple install

Mark from Gambrills, MD on 6/4/2018

2015 Toyota Corolla

Verified customer (What's this?)
Verified employee purchase (What's this?)

Easy install with clear instructions

Pros: Pretty simple to install and clear instructions included in the box

Cons: None

Crutchfield response on

0 of 0 found this helpful

Great product and service

Jason from Glendale, AZ on 4/13/2018

2016 Toyota Corolla

Verified customer (What's this?)
Verified employee purchase (What's this?)

Great product and great service. Will not buy anything else from anywhere else. Idatalink does exactly as stated. Recommend to anyone who wants to retain steering wheel controls plus more!

Pros: Retain steering wheel controls plus much more

Cons: Nothing

Crutchfield response on

0 of 0 found this helpful

idatalink

Tlee from Clarksburg, MD on 1/20/2018

2017 Toyota 4Runner

Verified customer (What's this?)
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Not a bad conversion kit

Pros: Easy to install

Cons: Steering wheel control could be better

Crutchfield response on

0 of 0 found this helpful

HRN-RR-TO2

Scott from Vancouver, BC on 1/16/2018

2017 Toyota Tacoma

Verified customer (What's this?)
Verified employee purchase (What's this?)

Seamless integration for JVC KW-M730BT into 2017 Toyota Tacoma.

Pros: Easy install Keeps most features

Cons:

Crutchfield response on

1 of 1 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Champaign, IL on 11/9/2017

2015 Toyota Corolla

Verified customer (What's this?)
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Easy install, works great!

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Just what I needed

tim from Leeds, AL on 7/30/2017

2016 Toyota Tundra

Verified customer (What's this?)
Verified employee purchase (What's this?)

Easy to install. Required if you wish to use their swc module. The wiring diagram was perfect and color match was easy to follow. This didn't include the adapter to retain the factory usb port. While this is not listed as included in the box, it is pictured as being with the harness (and mentioned in another review as included).

Pros: Easy to use

Cons:

Crutchfield response on

2 of 2 found this helpful

Works Perfectly

Peter from Maryland on 7/19/2017

2014 Toyota Highlander

Verified customer (What's this?)
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Works perfectly. Has a lot of "extra" parts because it is meant to fit several vehicles.

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Ft Myers, FL on 7/16/2017

2017 Toyota Camry

Verified customer (What's this?)
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Works as described

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Worth the money

John from Abilene, TX on 7/10/2017

2014 Toyota Corolla

Verified customer (What's this?)
Verified employee purchase (What's this?)

Really easy to use. The only hiccup was three wires that I wasn't certain what they went to and after some research I learned that if there wasn't any direction then you just cap the wire and don't connect it to anything.

Pros: Ease of use

Cons: Lack of information when wires don't match the other wires.

Crutchfield response on

0 of 0 found this helpful

Documentation lacking

Pete from Grand Junction, CO on 5/28/2017

Verified customer (What's this?)
Verified employee purchase (What's this?)

Better documentation and labeling would be helpful. I managed to figure out where most of the adapters and connectors went, but ended up with a few extra. I don't know what they were for or where they might connect. But, the new radio/navigation unit works as promised.

Pros: I found where most of the wires and adapters connected.

Cons: Leftover parts. Unlabeled and unmentioned in documentation.

Crutchfield response on 1/29/2018
Pete, sorry for the confusion on the iDatalink module. Some of the unused parts you mentioned and photographed are included by iDatalink for installers that are hardwiring the Maestro ADS-MRR module to a vehicle without a vehicle-specific wiring harness. Since we only filter the ADS-MRR module for vehicles that do have a compatible harness, we don't support information on hardwiring the module in such an advanced application. And when documentation fails, you get lifetime technical support for every product you purchase from Crutchfield.
Customer review photo

0 of 0 found this helpful

Fast shipping

John from Tallahassee, FL on 3/20/2017

2016 Toyota Camry

Verified customer (What's this?)
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Great product, great price, fast shipping! Thanks!

Pros: Plug and play!

Cons: None

Crutchfield response on

0 of 0 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from Toms River, NJ on 2/26/2017

2016 Toyota Tundra

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Works great with my Tundra

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Ross from San Antonio, TX on 12/13/2016

2016 Toyota 4Runner

Verified customer (What's this?)
Verified employee purchase (What's this?)

You need to know this: This kit comes with the adapter you need to connect the USB port from your aftermarket stereo to the factory USB port in your dash. The part number is AX-TOYUSB. The Crutchfield database (which is usually spot-on) was a little sketchy here, for 2 reasons: (1) The description of the iDatalink HRN-RR-TO2 doesn't tell you it has the USB adapter and (2) the database told me I needed the AX-TOYUSB2 (note the "2"). That's not the right part for a 2016 4Runner SR5 Premium. The AX-TOYUSB2 may work with older 4Runners or different Toyotas. Just make sure you know exactly which part you need. If your factory USB plug is gray, you need the AX-TOYUSB (the one that comes with this iDatalink kit). If your factory USB plus is brown, you need the AX-TOYUSB2. Bad thing is... you have to take out the head unit in order to find out which plug you have. Other than that -- This product was super-helpful. Just follow the wiring instructions to get it connected to your aftermarket harness and any other wires you'll need. Then plug everything in. It's all color-coded and plugs are different sizes, so they only fit in one place.

Pros:

Cons:

Crutchfield response on 12/20/2016
Thanks to Ross's review, Darren, our Car Integration Buyer, was able to identify the problem within our database and correct it. We apologize for the trouble this caused during this customer's installation.

6 of 7 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Crutchfield customer from San Diego, CA on 12/11/2016

2016 Toyota Corolla

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Everything seems to be up and running right on my '16 corolla

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

iDatalink HRN-RR-TO2 Factory Integration Adapter

Brian from TN on 11/22/2016

2016 Toyota Corolla

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Excellent

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Glad to have this product

robert from Noblesville In on 7/4/2016

2016 Toyota Camry

Verified customer (What's this?)
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Product was great asset to my install

Pros: Worked as i was told and program went easy and smooth

Cons: Wasn't able to program on my Imac

Crutchfield response on

0 of 0 found this helpful

Great Harness

Bryan from Clarksville TN on 6/14/2016

2016 Toyota Tacoma

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Harness was easy to install and directions were clear to follow.

Pros:

Cons:

Crutchfield response on

0 of 1 found this helpful

Blessing

Les from Honolulu, HI on 5/1/2016

2016 Toyota Tacoma

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Such a blessing. Makes the installation process so easy.

Pros: Color match and plug n play. Made the installation process real fast and easy.

Cons: None

Crutchfield response on

1 of 1 found this helpful

E-Z-P-Z

Alexander from Trenton, NJ on 3/11/2016

Verified customer (What's this?)
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So easy it should be a crime to install. Just match the colors to the head unit, then just plug right into your car's factory connectors...

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

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Pros:

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Crutchfield response

<< >>

More details on the iDatalink HRN-RR-TO2 Factory Integration Adapter

Stacey B.

Product Research

Features

Toyota Harness: The iDatalink Maestro HRN-RR-TO2 installation harness greatly simplifies the installation of the Maestro RR Car Radio Replacement Interface module (794ADSMRR, sold separately) in select 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); or other aftermarket head unit.

Notes: The iDatalink Maestro HRN-RR-TO2 installation harness requires the purchase of the iDatalink Maestro RR (794ADSMRR).

Vehicle Compatibility Chart: Click here for a list of compatible 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 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-TO2 installation harness.

  • Analog or Digital Amp (with Turn On, Fader, & Gain)
  • Vehicle settings personalization menu
  • Auxiliary AV input
  • Backup camera
  • Steering Wheel Controls

Note: When installing an aftermarket head unit without the iDatalink Serial Port, only steering wheel control & amplifier turn-on are retained.

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-TO2 installation harness.

  • Performances Gauges (user selectable)
  • Vehicle Information (Tire Pressure, Battery Voltage, Door Open, & Check Engine Codes)

Connections: The iDatalink Maestro HRN-RR-TO2 installation harness contains four Molex connectors which plug into your factory radio harness. On the other end of the harness are three 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-TO2 harness to your aftermarket head unit's wiring harness. There is also a composite video RCA connector which plugs into your aftermarket head unit's backup camera input. And, composite video/stereo RCA connectors that plus into your aftermarket receiver AV input. In addition, stereo RCA connectors connect to your aftermarket head unit's front-channel pre-outs.

Note: When using the HRN-RR-TO2 installation harness, you will not use the additional harnesses that are included with the Maestro RR Car Radio Replacement Interface module (794ADSMRR, sold separately).

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
Needed [ Robert  Jun 26, 2019 ]
A
2018 Highlander Platinum Hybrid, the factory amplifier is under the console, not under the passenger seat. This will hook my DSR-1 into the factory system and allow me to use factory speaker wires for a factory look system. [ Dan  Apr 11, 2019 ]
A
Recommended [ David  Mar 09, 2019 ]
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recommenced build by Crutchfield. They helped me build out my last stereo Crutchfield for the win!! [ coty  Feb 01, 2019 ]
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Steering wheel controls to stay the same. [ James  Jan 06, 2019 ]
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To enable the OEM feature of my kenwood KNN992 [ john  Jan 05, 2019 ]
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It was part of the recommended package [ Joshua  Dec 31, 2018 ]
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to connect to stand setup in car. [ thomas  Dec 06, 2018 ]
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To facilitate replacement of factory head unit with aftermarket unit. [ Mark  Nov 20, 2018 ]
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Steering wheel integration [ Bryan  Sep 15, 2018 ]
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With this item I will be able to integrate the car data into the receiver. [ J Del Solar  Sep 03, 2018 ]
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Seamless integration. [ Anthony  Aug 17, 2018 ]
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Recommended from Eric [ Joshua  Jul 22, 2018 ]
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Allows programmability. Not like some other adapters which come with a factory set of codes that work on some buttons but not all of them. [ Albert  Jul 18, 2018 ]
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You recommended it [ William  Jul 02, 2018 ]
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To Maintain steering wheel controls and backup cam. [ Donald  Jun 27, 2018 ]
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Didn't want to lose any features from my old stereo upgrading to the new one. [ CRAIG  Jun 19, 2018 ]
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It was referred to me when looking at the actual idatalink maestro that I would need a vehicle specific harness. [ Eric John  Jun 03, 2018 ]
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Connect the Maestro to the car guy [ Kevin  Apr 14, 2018 ]
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supposed to be the best product for the job [ K  Mar 31, 2018 ]
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Want to keep factory options [ ANGEL  Feb 06, 2018 ]
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I needed to keep factory options and I wanted to use tire pressure sensors to full capabilities. [ Kevin  Jan 26, 2018 ]
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One of the recommended accessories. Want to retain factory features and remote controls [ Rico Suave  Jan 01, 2018 ]
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Ease of use [ Mitch  Nov 19, 2017 ]
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I need it. [ MICHAEL W  Nov 10, 2017 ]
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Ease of implementation [ Scott  Sep 18, 2017 ]
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before ordered its says s 2day shipping in NJ... thats y i choosed crutchfield. thank you for fast shipping [ Jalal  Aug 10, 2017 ]
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Maintain steering wheel controls [ Thomas  Jun 15, 2017 ]
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To retain factory steering wheel controls [ Ryan  Apr 28, 2017 ]
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Crutchfield said it was needed for my aftermarket GPS in-dash receiver. [ Brooks  Mar 14, 2017 ]
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I chose this adapter to connect a Pioneer AVH-4200NEX to a 2016 Toyota Camry, through an idatalink Maestro Rr unit. the amount of time saved and not having to splice wires in a brand new car was well worth the investment. [ Joseph  Feb 28, 2017 ]
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To retain factory settings after changing out my stereo [ Leslie  Aug 26, 2016 ]
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I literally look everywhere for a OE Integration Adapter for my application, I though I would find it cheaper near me. Why did I do that It's beyond me, a total waste of time, and time is money! From now on I'll start my search in Crutfield, period! [ Nelson  Mar 15, 2016 ]
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5 questions already asked

Q
Will this retain the factory microphone for bluetooth calls?
[ Jonathan  Jul 02, 2019 ]
3 answers
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No. You have to run the microphone that comes with your new head unit.
[ Darren  Jul 02, 2019 ]
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In my 2016 Tacoma it didn't it may be different in other makes but I had to use the microphone that came with the aftermarket radio
[ Bryan  Jul 02, 2019 ]
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No, it does not. The OEM mic is a powered unit and the interface does not provide power for the mic. You need to install and use the mic that comes with your new HU.
[ Richard  Jul 02, 2019 ]
Q
Can this kit be used for installing a 5-channel amp on a 2017 corolla? It looks like the plugs can be plugged into the factory radio and the kit RCA plugs (4 channels) can be connected to the AMP inputs. The 4-channel outputs from the amp can then be connected to the kit and the original factory plugs for speakers (disconnected from the factory radio) can be plugged into the socket connectors in the kit. If the above is correct, I can used it for my amp to power the factory speakers and the added subwoofer. Please advise, thanks.
[ Tom  Jan 28, 2019 ]
4 answers
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That wiring harness is for the Maestro Rr It's not going to help you connect a 5 channel amp to a factory head unit. I have videos on YouTube on how to add amps to a 2014 Corolla. Just search my name Chris .
[ Chris  Jan 30, 2019 ]
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Yes
[ darius  Jan 30, 2019 ]
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No. This kit is for installing the iDatalink MaestroRR vehicle interface module between the vehicle and an aftermarket HU. 4 of the RCA connectors that you see are cut off during installation into the Corolla. There are parallel wires that connect to the new HU's speaker outputs. The harness output connects to the vehicle harness. The other 2 RCA connectors are for the backup camera and aux video input.
[ Richard  Jan 30, 2019 ]
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Unfortunately the answer is probably no if you are trying to keep your factory radio. The plugs that connect to the car are all female and accept the wires from the car that plug into the radio. It doesn't come with the male ends that plug back into the factory radio. The "output" ends are just wire that would normally be soldered to the harness that would come with an after market head unit. So in the end, this is not the harness you are looking for if you are looking to keep your factory head unit. This may also need the Maestro RR to work properly. Maybe look into finding a male and female plug (2 different plugs) that you can splice together and have the audio lines coming out of that? I would check with a corolla forum for what others have done for this type of project if Crutchfield can't answer this specific project. I don't know your specifc model so it's hard to search for the plugs to see if they even exist but it looks like others have done this to create a homemade plug and play harness. Good Luck!
[ AARON  Jan 30, 2019 ]
Q
Does this retain Birdseye view camera functionality on a 2017 RAV4 Limited? If so, will it act the same?(camera shows up when you slow down, or put it in reverse etc)
[ VTECMAN  Jan 04, 2019 ]
2 answers
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If you kept the factory camera, it will have the same view. It should also work when you are in reverse gear. If you have replaced the factory Info-tainment unit with a Pioneer model, you can manually select to display the camera view all the time and it does offer a timer to flash between the camera and the current mode the Info-tainment center is in. It will not automatically turn the camera on when slowing down.
[ Peter  Jan 04, 2019 ]
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I have no idea, but I can tell you that I very much regret purchasing the Kenwood head unit this came with. I am now on my second Kenwood and will never purchase another of their products. They are buggy, crash a lot, and their companion apps all have a ton of one star reviews for a reason.
[ James  Jan 04, 2019 ]
Q
Will this work on 2007 Toyota Avalon XLS?
[ Uzondu  May 26, 2017 ]
1 answer
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You can check to see if this will fit your vehicle by using our Outfit My Car tool: http://www.crutchfield.com/car/carselector.aspx For additional details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.
[ Krissy  May 26, 2017 ]  Staff
Q
Does this retain the factory back up camera?
[ Brian  Feb 10, 2017 ]
11 answers
A
Yes it will
[ Leslie  Feb 11, 2017 ]
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No. I had to install a separate one to work with the Apple Play Pioneer head unit
[ B  Feb 11, 2017 ]
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I had an aftermarket camera that displayed through the toyota factory unit, and when I replaced it with the idatalink and a new unit, it still worked.
[ Peter  Feb 10, 2017 ]
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Yes, worked like a charm.
[ John  Feb 10, 2017 ]
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Yes it does but it does not retain the factory radio antenna so before installation make sure to get that.
[ Brent  Feb 10, 2017 ]
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Yes but it don't when you put it in reverse but I didn't hook up the reverse wire . So it works but you have to access through menu on Kenwood head unit
[ ROBERT  Feb 10, 2017 ]
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Based on 2015 RAV4 and 2016 Corolla. Yes, also adds tire pressure and all sorts of other gauges.
[ Carlos  Feb 10, 2017 ]
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Yes it does. I installed it on a 2014 Toyota Tundra.
[ Juan  Feb 10, 2017 ]
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Yes
[ Anthony  Feb 10, 2017 ]
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Yes, the factory camera works with this installed.
[ Brian  Feb 10, 2017 ]
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I didn't have a factory camera but I did add my own. I do know that the instructions that came with this adapter included a way to re-use the factory camera at least for my car (2012 Camry).
[ Syed Danish  Feb 10, 2017 ]
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