Customer Reviews

Easiest way to wire a car

I remember the bad old days when we'd crimp and solder harnesses together. Thank goodness we don't have to do this anymore. This harness even accounted for production variations. It included a 16 and 24 pin adapter depending on which way the car was built.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Wiring made easy. Save the time and get this kit.

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Complete range of connections and easy to install

This harness includes everything needed to easily install the radio and integrate with the Maestro unit. Unfortunately the connection with the review camera harness doesn't securely fasten so I needed to reinforce the connection with tape. I believe the problem is with the harness on the head unit so I'm giving this item a 5 star rating.

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Excellent plug and play harness

I LOVE THIS HARNESS! No cutting wires or soldering. All just plug and play. Perfect!

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Made install fast and simple.

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It does what it says it will do

I have no complaints. Install in 2015 Toyota Tundra with Jensen head unit and it worked as advertised.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Provides full functionality for all of the connections on our 2015 Highlander with replacement Pioneer stereo.

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Backup camera connector doesn't mate properly

The harness for the Toyota Camry kit has two variations for connecting to the vehicles harness. The black iDatalink internal connection doesn't mate properly. It's surprising since both sides of the connection are from iDatalink. I had to cut the connector and mate the wires together manually. 6 of the 8 wire colors were the same on both sides of the connector. It was less clear how to connect the last two because the cut the connectors off without checking the matches. It took me a couple of tries to get it working since there were two black wires on one side and a black plus brown on the other. The connector in question is the black one on the two harness parts in the bottom right corner of the product picture. Neither connects to their main harness (in the top right of the picture) properly. Trouble shooting that added about 2-3 hours to the install time.

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Crutchfield response on 2/11/2025

Once we saw this review, our Tech Support specialist, Chappell, reached out to Watson to help him further. Whenever you encounter a problem with anything you purchase from Crutchfield, please contact our Tech Support team right away. Lifetime tech support comes with every Crutchfield purchase.

Excellent product

This is such a great way to make it easier to wire up a new stereo.

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Poor quality control by Crutchfield

Crutchfield has very poor quality control. Sent me missing and broken wires and delayed installation two weeks with slow shipping.

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Crutchfield response on 1/7/2025

We were sorry to hear about this customer's experience with his order. We're forwarding this on to our Tech Support supervisors, so they can look into it. We strive to provide the best service, before, during, and after your purchase, and it looks like we missed the mark this time. We hope he gives us another chance to prove we're the best in the business.

iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Makes process easy

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Quality piece.

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Plug and Play, except...

This was definitely easier than splicing wires (though I had to do that anyway with my backup camera), but I had no real clear instruction on what plugs into what. Or even what everything is; I had to figure out the OBD port thing, then guess which one hooked into the rest of the harness, and I had the same problem many others had with the A plug. I'll need to get electric tape on it to make sure it stays, but the A plug definitely does not attach properly, and I can't believe iDatalink hasn't fixed that. Other than that, still pretty much plug and play.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Works awesome: two minor complaints - the backup camera connectors don't clasp like the other ones, I had to use a channel lock to clamp down and get it to clasp - the antenna wire connector came with a female type connector but the accompanying antenna had bare copper. This was easily solved by using one of the recommended inclusions of harness connectors but would have been nice if this were mentioned in instructions.

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Manufacturer Defect

Bought this to connect the BOSS stereo I bought to my 2018 Toyota RAV4 Hybrid and the Maestro iDatalink. Goal being to upgrade factory JBL stereo to one with Apple CarPlay, but without losing access to my backup (multi?) cam views. I don't blame Crutchfield for this, but it seems to be a factory defect with the manufacturer because Crutchfield Support sent out two of these to me next-day air and both had the same problem, which is... the harness comes with two connector (options A and B, depending on car) for cameras. Both would NOT fully connect. One of the Crutchfield reps I spoke with mentioned that this had come up with a couple of other people, and that the recommendation was to plug it in as far as it would go, and then tape it together with electrical tape. Not my preferred option, but I did try it and it is not working. Photos attached. This has definitely been a bigger pain that I thought it would be. Even with all the wire connecting (on the first round), I took it as a challenge or a puzzle to solve (even though it was confusing and took several hours). But now, on my third shipment, the fact that it still doesn't work and my car has been in my garage for the past few weeks... I am about to give up! Moral to this story... I wouldn't recommend this particular harness. Can't comment on anything else, as I have not been able to get even the baseline to function. #sad

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Simple to connect and made connecting the head unit and wiring very straightforward.

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4.8/5 stars

99% pleased. I expected, based on the info both here on Crutchfield and on Maestro's website, to retain maintenance menus, etc. But I didn't. Also, if using with a Sony stereo, make sure you read the directions carefully. There is a blue harness connection that mates the RR2 to the head unit via 3.5mm jack. This retains the steering wheel controls. It's not specifically stated anywhere. And make sure you get the head unit specific adapter so you don't have to cut and splice wires to the head unit's pigtail.

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Thank God for this little life savor!

Just buy it! Not only do you keep your controls in the steering wheel and retain the cars computer functions, but it saves hours of labor with splicing and crimping. Seriously it's just plug and play if you are not using aftermarket amps! They even wrap the wires so it's not a mess in a box! Like who does this for you anymore!

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Extremely easy to use. Just plug and play - no soldering. Just wish it brought the factory 3.5mm AUX-IN too.

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Awesome

2018 4Runner, what a time saver this harness was.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Fit like a glove!

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2017 Tundra

If you are doing head unit and maestro this is a must have for plug and play. Trying to splice wires would not be worth it. Plug and play!

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

The black backup camera connector doesn't fully connects on the main harness. Everything else is fine

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Works as described

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Gets you 90% there

Confusing instructions but this works. The reason for the missing star is that the cable hookup is a little overwhelming. It took multiple reads to figure everything out. It would also could have included adapters to re-use the cars existing microphone, GPS antenna and Sat antenna.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

perfect no complaints

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Worked with my 2017 prius prime plus

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Easy to install with detailed instructions.

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Ehh

Instructions provided are lacking a lot of information. Very general information. Not nearly enough information about vehicle specifics.

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Crutchfield response on 1/23/2024

Shane, we're sorry you're having issues with your wiring interface. Whenever you are not completely satisfied with anything you purchase from Crutchfield, please contact our Customer Support team at 1-800-955-9091. Purchases from Crutchfield can be returned or exchanged within 60 days of the purchase.

iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Was easy to use. Only issue was the 24-pin integration harness does not clip in to one another. I had a replacement shipped and that specific pin had the same problem. Crutchfield was great on assisting/shipping the replacement. However, it's an issue with the production of that specific part.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Made installing my Alpine head unit in my 2017 Tundra easy. The harness itself is well made, secured and clearly labelled. The wiring diagram pdf that Crutchfield provided was essential, as there were no paper instructions included, although it took me a few minutes to fully comprehend. This was my first major electronic upgrade I've tackled on my own. I ended up not needing a couple of the shorter connectors for my particular vehicle. If you take your time and plan out the orientation before taking it out to your vehicle, the install should go smoothly. I would definitely recommend this harness to anyone looking to upgrade their head unit and maintain all controls with a Maestro module.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Makes the installation so much easier. Wish this option was available for every vehicle.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Made install a ton easier but didn't come with an antenna adapter so no fm stereo

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A must have accessory for a novice

A must for making the wiring connections if you are a complete novice like me. These were a lifesaver for connecting the JBL radio with the 2015 Toyota RAV4 XLE w/o JBL factory wiring. The wiring is still a little complicated, but with patience can be figured out. Crutchfield tech support was great helping me figure out the connection I was missing for the backup camera. Also, pay close attention to the wiring guide as it will help eliminate the wires not needed for your specific car.

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Hate wiring, get this!

This makes wiring painless, just had to crimp the antenna power from the adapter and add the correct adapter for the aftermarket radio. This truly made the install plug-and-play. Which for some who likes building harness feels like I'm cheating.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

A lot of things to connect. Missed the one for camera at first. Once I found that I left it out, everything worked well.

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Great

I was expecting this to be a serious hard challenge to figure out all the wires and connections, but this kit made it super easy and worked like it was supposed to.

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Works great

It's a harness. What more did you need to know? ....in all seriousness, this and a couple others made installing a new head unit in my 2012 Toyota Prius v a breeze, compared to what I was expecting. Seems to be working flawlessly, even if I'm bitter to have lost the factory aux port and microphone. Dunno what exact component to "blame" that loss on, though.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Made installation easier

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Had cut plug off and splice radio and other harnesses into it. Wish they had told me upfront. They said it was plug and play.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Worked with the factory wiring great

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Very easy to use. Makes the install fast and simple

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

The entire iDatalink system makes installation relatively easy. This was the first time I've ever tried to install a car stereo and it was fairly straightforward thanks to this for easy installation.

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Perfect Recommended Parts

I love that Crutchfield will always tell you what other parts, harnesses, etc., will be required to complete the installation you are trying to accomplish. These recommendations are spot on and will help you achieve the job.

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Awesome

Ease of use helps you connect all the wires without cutting any of them. Every connector you need. Don't forget you can call Crutchfield for support...They have your back. You can do it.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

OMG, so many plugs! Once I slowed down and looked over the wiring diagram a dozen times I got everything plugged in and sorted out.

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can't imagine splicing all the wires without this

Given the number of wires in a modern car head unit install, especially when incorporating the Maestro unit to keep steering wheel controls, back-up camera, etc., this is a must. With this and the radio-specific adapter, I was able to connect up between a Pioneer and a 2015 Toyota Camry with only one barrel splice (the blue antenna wire). Gave 4 instead of 5 stars because of a QC problem with one of the connectors. One of two adapters for a particular stage of the wiring harness must be selected depending on your vehicle model. Making this connection was not possible with the first one I got, so had to wait for a replacement. 2nd copy of this worked perfectly.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

This made installation so easy! I also purchased the adapter to go from this harness to my Sony head unit, so there was zero soldering.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

I was not impressed with the vehicle specific instructions. I had to call a few times. Customer support was great just seems like a little more detail with the vehicle specific instructions would prevent support calls.

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Plug and play

Installed into a 2019 Toyota Tundra SR5 Crew Max. Was a seamless install, just plug it a play it.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Worked great Excellent customer service

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Harness

Made radio install a breeze even for a 75 year old, lol

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Easy to use and to install

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Easy to install!

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Made wiring easy

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

This was very helpful and made swapping out the stock head unit with something new a breeze.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Works great! Along with the Kenwood "T harness," I only had to manually make one connection behind the radio (amp remote). Saved a ton of time.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

It's a good kit overall. Fails to retain the factory microphone and reverse camera functionality though. The factory system sends the radio a signal telling it it's in reverse. It's pin 2 by the way. The kit completely fails to utilize this pin so you'll have to splice into the factory harness which defeats the purpose of this kit. I'm not a microphone expert so we can hide that under the rug. The reverse camera thing is just poor design. At this price just throw an extra pin/wire into harness.

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Crutchfield response on 1/25/2023

Once we saw this review, our Tech Support specialist, Nash, reached out to Samuel to help him further. Whenever you encounter a problem with anything you purchase from Crutchfield, please contact our Tech Support team right away. Lifetime tech support comes with every Crutchfield purchase.

Extremely Disappointed.

Pretty annoyed, I had a rep put together a system for me so I could keep the guess work out of things. After being assured I have all I need, I began installing the replacement head unit. I found that the t-02 harness does not fit my factory harness and I was sent the incorrect parts. Now I am concerned that I will not be able to source the right parts. The 28 pin connector connects, but the 6 pin and 10 pin connector are nothing close to what plugs into my factory harness. I have a 2013 Prius with the factory jbl system with an amplifier and gps. I was very clear about this when discussing it with my advisor.

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Crutchfield response on 1/23/2023

We're sorry this customer had problems during his installation. He is currently working with our Tech Support team to resolve his issues. Whenever you encounter a problem with anything you purchase from Crutchfield, please contact our Tech Support team right away. Lifetime tech support comes with every Crutchfield purchase.

iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Must have to install a new head unit for Toyota.

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Easy buy

Great plug and play kit. Make sure to pull up the schematics on the site. Great color wiring reference per vehicle.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Great. Made use of all steering wheel functions, as advertised ??

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

MUST HAVE harness for plug and play install on Kenwood units. Buy this unless you like to solder very tiny wires!

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

You need this!

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Great love that I can have my factory settings

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Halo 11

All the wires were made to fit perfectly without any other alterations.

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Great harness for my 2019 Tacoma

Great product. Made my stereo installation a breeze.

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Great instructions, easy install

The IDatalink was easy to install and set up. Flashing was easy with the supplied instructions. Crutchfield made it easy to connect the right wires with their color coded instructions. Installed products worked as advertised.

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Works great!

Works great!

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Great addition to my new Kenwood stereo. Made the install super easy, plug and play.

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Tech support is a joke at Crutchfield

my RAV4 was born 10/2013 says the door jam in it. It's the limited model with JBL sound system, this harness will NOT work at all. Crutchfield tech told me I didn't need to plug in the the big fat 18-20 pin factory connector. said it was not needed anymore. Also told me I needed to connect the power antenna blue wire. RAV4's don't have power antennas. Never will I shop on here again. I did it thinking my install would be easy,

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Crutchfield response on 11/10/2022

We were sorry to hear about Eric's experience with our Tech Support team. We're forwarding this on to our Tech Support supervisors, so they can look into it. We strive to provide the best service, before, during, and after your purchase, and it looks like we missed the mark this time. We hope he gives us another chance to prove we're the best in the business. Eric contacted our Customer Support team and set up a return. Purchases from Crutchfield can be returned or exchanged within 60 days.

iDatalink HRN-HRR-TO2 Vehicle-specific Harness

This made connecting my Kenwood had unit to my 2015 Rav4 super easy

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2019 Corolla Good, Required slight modification

Bought this for my corolla w/ Pioneer radio and Maestro module. The harness it self is pretty good and all the connectors matched with no issues. Instructions (Had to find them online) were pretty good and are vehicle specific. The color-coded EWD was good but some wire colors did not exactly match up but was not difficult to figure out. Instructions were detailed but I felt that some information was left out about installation and how the harness works, again not difficult to figure out if you know what you're doing. After everything was wired up and installed, I had no back-up camera. I had video signal from my factory camera but would not show when going into reverse. There was a wire for the R signal input to the radio but it went straight to the module. The harness did not tap into the vehicle's R signal wire from one of the connectors used, that pin was simply not used. I had to un-pin a wire from a connector from the harness that was not used and pin it to the R signal and run that wire to the radio. After that my R signal input worked fine. Overall pretty pleased with the harness

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Complete kit to perform installation

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

This harness kit made my install a breeze! Probably saved me an hour and a lot of tedious work. Well worth it.

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Steering control

I followed the directions for the harness installation and the steering control still does not work.

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Crutchfield response on 9/28/2022

Once we saw this review, our Tech Support specialist, AJ, reached out to Daniel to help him further. Whenever you encounter a problem with anything you purchase from Crutchfield, please contact our Tech Support team right away. Lifetime tech support comes with every Crutchfield purchase.

iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Worked as it should.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Works perfectly, didn't have to splice any wires for my upgrade

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PnP Harness

Plug and Play. Easy install. It works. Keep in mind AUX-in connection on the 3rd Gen Tacoma will be lost.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

The procuct was great the instructions not so much.

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Plug and play

Plug and play for Toyota ! Just need to tape it up look nice

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

The kit worked as expected

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Efortless

Was able to install my new infotainment system without cutting, soldering or crimping a single wire.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Made things easy. Had to call crutchfield support to sort out some unused wires. Derrick was very helpful

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

These harnesses combined with the crutchfield instructions made installing my new entertainment unit myself an absolute breeze

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Harness worked great for my Pioneer 7600NEX install in my 4Runner!

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Awesome product. Made installation a breeze especially with crutchfield's ready harness service. Highly recommend

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Simple and easy to install, does exactly what I needed it to do.

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iDatalink HRN-HRR-TO2 Vehicle-specific Harness

Made the install much easier. However was not exactly a plug and play. The power source had a 17 wire adapter and my receiver had only 15, so I did have to do some soldering to connect the harness to the receiver. Not hard just an issue I was not expecting.

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