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Crux SWRTY-61J Wiring Interface

Connect a new car stereo and retain the steering wheel audio controls, aux input, and factory amp in 2003-2012 Lexus and Toyota vehicles

50 Reviews | 2 questions - 8 answers

Item #: 249TY61J

In Stock

Was: $109.99

Price Break: -$20.00

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Our take on the Crux SWRTY-61J Wiring Interface

You'll only be able to retain your steering wheel audio controls with a compatible car stereo made by Alpine, Blaupunkt, Clarion, Jensen, JVC, Kenwood, Pioneer, or Sony. No other brands are currently compatible. Check the Details tab to see if steering wheel audio controls are retained in your vehicle.

Keep those factory options

Crux's SWRTY-61J interface ensures that you can keep the factory steering wheel controls and factory JBL amplifier in your Toyota or Lexus when you install an aftermarket radio. Connect this interface to the wires on your new stereo's wiring harness, and you've covered the power, ground, and factory speaker connections for your new stereo. Another plus — your Toyota's auxiliary input will still work with your new car stereo.

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

Without question one of the simplest aftermarket products I've installed. The instruction and installation was quick and straight forward. All features worked as they should.

EBGB, islip, NY

What's in the Box:

  • Radio replacement interface module (w/ attached T- harness)
  • SWC harness
  • Installation Instructions


  • connect a new stereo in select 2003-2011 Toyota and Lexus models
  • retain your steering wheel controls with select car stereos
  • retains factory JBL amplifier and aux input
  • warranty: 1 year
  • Our 60-day money-back guarantee

Crux SWRTY-61J Wiring Interface Reviews

Average Customer Review:

50 Reviews

Crux for toyota

Written by: EBGB from islip, NY on January 21, 2016

2004 Toyota 4Runner
Crutchfield Customer Review (What's this?)

Without question one of the simplest aftermarket products I've installed. The instruction and installation was quick and straight forward. All features worked as they should.

Pros: Simple straight forward install.

Cons: None yet

Good Product

Written by: Rob from Maryland on January 18, 2016

Ordered the product to as an interface to 2007 Toyota Sienna. Product worked as promised. Would have given it five stars if the directions were a little clearer. Had to contact the service technician at Crutchfield for explanation about several wire connections. They were more than helpful and product worked without flaw. Great product and would recommend.

Pros: flawless connection with existing wire harness

Cons: instructions not as clear as would be expected

Works as advertised

Written by: eeutep from Arizona on January 14, 2016

Crutchfield Customer Review (What's this?)

Installed this on a 2008 Toyota Sienna with JBL system, using a Kenwood DNX572BH (which I returned), and now a Pioneer AVIC-5100NEX. The Crux works well with both units. All my steering wheel controls work as they should and haven't had any problems. My only complaint about the unit is that the wiring is a little disorganized. You've got wires that come out different directions, some loop back, some shorter than others, etc... I like to be neat and it would be nice if this was a little neater. It was a little difficult to push back into the dash far enough so it wouldn't interfere with installing the receiver. Overall, I would definitely recommend this, and I would purchase again in the future. Some advice: Keep all the extra cables and connectors that may not apply to your vehicle or receiver. Since I switched receivers and probably threw out a specific cable for the Pioneer, I now have to wait over a week to receive that cable for the Pioneer unit (it came with one for Kenwood, and a different one for Pioneer). Thank you Crutchfield for sending me that cable by the way. (I would have at least paid the shipping if I had known it was going to take over a week though).

Pros: Easy Install, kept all controls in 2008 Toyota Sienna

Cons: Bulky. Wiring is kind of a mess.

Makes installation easy. Works well.

Written by: JAD110 from Maryland on January 9, 2016

Crutchfield Customer Review (What's this?)

This interface works well on Toyota vehicles. It's pretty easy to install and interface although you will need to splice a few wires to correctly interface it the the factory provided receiver interface cable assembly.

Pros: Works very well. Provides easy interface to most of the required connections.

Cons: A few wires will still need to be spliced.

Wiring Interface

Written by: Sandra from Oregon on January 8, 2016

2007 Toyota Tacoma
Crutchfield Customer Review (What's this?)

Good products, third system purchased from Crutchfield.

Pros: Can take to any stereo installation/dealer and they have no issues.

Cons: None

Third time a charm?

Written by: DeeRo from Tennessee on January 2, 2016

2011 Toyota Tacoma
Crutchfield Customer Review (What's this?)

"first" install was fairly painless....other than trying to figure out where to cram the unit behind the dash--going from a single-din to a double makes this a challenge. Once installed, had an alternator whine. Crutchfield tech support was excellent, and sent two ground loop isolators. Sadly, this didn't help. Called Crutchfield again, and they sent another CRUX, saying it may be the unit itself. Reinstalled the new one. Alternator whine is gone, but now the steering wheel controls didn't work. Same dance, different tune. Crutchfield sent Another Crux. Controls work, no whine, but now have a staticky thumping every 5 seconds or so. Grrrrrrr. Not sure if it's the CRUX (think so) or the head unit, but i'm almost ready to rip it all out and start from scratch.

Pros: Simple. Easy to install. Even three times!

Cons: QA of the product itself. Three units, each with a different anomaly. Don't think I'd buy it again.


Written by: Mike from Cincinnati, OH on December 30, 2015

2011 Toyota Tacoma
Crutchfield Customer Review (What's this?)

Very good harness. easy to install.

Pros: Ease of use. Plug and play.

Cons: a little clunky so I had to hide it away deep inside the housing behind a side panel. It was keeping the head unit from seating in properly

Two Minor Issues

Written by: Cody H. from Colorado on December 15, 2015

2007 Toyota Tundra
Crutchfield Customer Review (What's this?)

My journey for getting a new stereo for the Tundra started out at a local stereo shop in Colorado Springs. The stereo shop got me all the parts and interfaces that I needed and sent me on my way. I had the Kenwood 372BT, a PAC interface and an AXXIS interface (2007 Tundra with JBL). I pulled everything out and realized that this was beyond the amount of skill I have and was going to be a NIGHTMARE to wire. I then looked at the Crutchfield (CF) options and found this Crux kit. I took all my new stuff back and ordered all the components from CF- to credit Crutchfield, I saved $90 vs the local shop, and the Kenwood unit was at a Doorbuster price. Install: everything went very straight forward and seemed to work as it should from the start. I was SUPER stoked because there were so many things that could have not worked. However, I got to the phone controls (phone lift and phone hang up) on the steering wheels and realized that they don't work, and neither did my aux input (factory location port). I called tech support and the tech told me that it was pretty common to lose steering wheel phone controls. This isn't a deal breaker for me, but may be for some. Upon further investigation, I realized it was only the pick up button that doesnt work, hang up works fine. I then asked about the aux port and he said that I would need to get the Y adapter cable. That stung a bit. My truck is all torn apart and now I need to go find a wire that I would expect to be included.

Pros: Very easy install. Minimal programming with SPECIFIC for your vehicle install instructions. I can't tell you how much this helps. If you get bored google the PAC kit instructions.

Cons: Permanent flaw with a dead button on the steering wheel; needing a cable that should have come with the kit, or even a heads up would have sufficed.

Works but has bugs

Written by: Ron T. from California on December 7, 2015

2007 Toyota Sienna
Crutchfield Customer Review (What's this?)

I was pretty confident with the install instructions and products I was working on that I actually soldered all the connections for a permanent install. Unfortunately I got the digital ticking sound that coordinates with the green led flashing that some others have mentioned. I also got the faint but apparent static noise as well. I am seeing if a new unit will fix the issues, but I have be my doubts. In the mean time I purchased a Metra harness that works great, but doesn't have all the wires I need (no reverse signal and brake wire). It has great audio though so if it really doesn't work out with the crux I will just make do with the Metra and a separate SWC unit.

Pros: Has everything in one package

Cons: Digital ticking noise and static.

Do not buy

Written by: Anonymous from Louisiana on November 20, 2015

Crutchfield Customer Review (What's this?)

The first one did not work and the second one stopped working after a few months. Crutchfield did replace the first one but still not worth the hassle. Had to go to local audio store and they installed good quality harness.

Pros: All in one.

Cons: Does not work with tundra with jbl. Poor quality.

It works well

Written by: Dennis Ranck from Las Vegas on November 13, 2015

Crutchfield Customer Review (What's this?)

Using the paperwork provided, it connected wirelessly. It appears to be working properly. My only concern, is using the channel Up / Down buttons does not increment the pre learned stations. Rather it moves up or down according to the frequency.

Pros: It is a simple connection.

Cons: See above.

Not so great

Written by: Paul from Paso Robles, Ca. on November 3, 2015

Installed with Clarion nx501, didn't turn out so well. Volume pulses , static threw the whole volume range. So so directions. Not worth cost. Should have done the by-pass.

Pros: Went together fairly easy, steering wheel controls work great.

Cons: Volume pulses, static, incomplete instructions. Not worth the money

Wiring Adaptor

Written by: Ric from Washington on October 18, 2015

2008 Toyota Tacoma
Crutchfield Customer Review (What's this?)

most of the wiring is straight forward, some pre planning, or plan of attack makes a lot more sense of the project.

Pros: fairly straight forward, easy to figure out.

Cons: some odd setups to figured out specific to my vehicle.

Works great!

Written by: Ben from Colorado on October 16, 2015

2006 Toyota RAV4
Crutchfield Customer Review (What's this?)

Works great with my 2006 Toyota RAV4 - ties in the factory JBL amp and the steering wheel controls. The only complaint, and it's minor, is that there is sometimes a little delay when using the steering wheel controls. It might be the head unit and not this interface.

Pros: Connects the factory JBL amp and steering wheel controls

Cons: Slight delay when raising or lowering the volume

2009 Rav4 Limited Install

Written by: RLS from Felton, PA on October 14, 2015

2009 Toyota RAV4
Crutchfield Customer Review (What's this?)

Instructions were good and was relatively easy to hook up. Not ALL Steering Wheel controls are supported on the RAV4 Limited.

Pros: Does everything it is suppossed to do EXCEPT....

Cons: The on-hook and off-hook phone buttons on the the Toyota RAV4 Limited Steering wheel are not supported and cannot be remapped to be used for another purpose.

Crux SWRTY-61J Wiring Interface Reviews

Written by: David from Colorado on October 11, 2015

2007 Toyota Tundra
Crutchfield Customer Review (What's this?)

Excellent product



Great buy

Written by: Morgan from Southport, NC on October 9, 2015

2005 Toyota Sequoia
Crutchfield Customer Review (What's this?)

Easy install and small to fit in dash. I'd recommend to anyone willing to pay the extra money on top of everything else. Works just like it did when I had the factory stuff in

Pros: Small, easy to install

Cons: Lots of wires to fit into small hole, a little expensive for what you get

Crux SWRTY-61J Wiring Interface

Written by: adam from Hawaii on October 8, 2015

2007 Toyota 4Runner
Crutchfield Customer Review (What's this?)

Hard to give this product a rating when im still trying to find the solution to my problem. I have a 2007 4runner with jbl sound system, which could be the problem since I have read other reviews with similar results. Bought a pioneer DEH-x6700bs, bazooka tube, and crux SWI. My front speakers fade in and out every 15-20 seconds, talked to Crutchfield technical support team regarding the problem(they were really helpful) but still couldn't figure out the problem. Sent back my original SWI, got the new in and installed it with same results, tech team thinks it could be the pioneer stereo. Gonna have to Stand by and wait for my new stereo to come in and return my current one. It's just a pain to have to keep waiting not knowing what's gonna happen



Great for Toyota & Scion

Written by: Tim from Virginia on September 29, 2015

2011 Toyota Avalon
Crutchfield Customer Review (What's this?)

I used this for a 2015 Scion xB with factory installed camera and steering controls. Worked PERFECT, though this vehicle isn't listed in the compatibility chart. I'm an installer with over 20 years experience having worked with many Toyota and Scion vehicles, I knew this piece would work.

Pros: All features are retained in 1 harness(camera and SWC).

Cons: The adapter for the camera gets its power from the reverse signal. If you have a Receiver that allows you to choose the rear camera as a source, it is best to remove from the reverse wire and connect it to the accessory wire.

Crux SWRTY-61J Wiring Interface

Written by: mike from Washington on August 29, 2015

Crutchfield Customer Review (What's this?)

Product works great, however I needed some tech support to make several wire connections.

Pros: Works as described.

Cons: none

It's functional....

Written by: K L from California on August 26, 2015

2007 Toyota 4Runner
Crutchfield Customer Review (What's this?)

Overall the instructions made the wiring and installation very simple. The unit is a little cumbersome in the small area that my car had behind the radio unit, but otherwise is functioning as advertised. Still too early to give it five stars but so far, so good.

Pros: Easy installation and connections.

Cons: A little bit large in size but overall, not much.

Works great

Written by: MikeD from Nevada on August 22, 2015

2004 Toyota Tundra
Crutchfield Customer Review (What's this?)

Had problem with 1st unit, bad RCA connector created static or no sound. Called and unit was replaced right away. No problems with new one, no static. Also, added suggested 2nd ground. 2nd set of instruction much better the 1st (one page) set.

Pros: Price. One harness to connect to truck (2004 Tundra) and steering wheel.


Works as advertised

Written by: JeremyJo from Kalispell, Montana on August 17, 2015

2005 Toyota Tundra
Crutchfield Customer Review (What's this?)

Works just as advertised. A little bit of background buzz but quite tolerable. 2005 Toyota Tundra - definitely preferable to running new wires from front to back to bypass factory amp. Factory amp specs are like 200watts? Anyway, sufficient for my listening.

Pros: Fairly easy to install, functions as advertised, don't need to bypass factory amplifier.

Cons: Little bit noisy, somewhat tangle of wires, poor documentation - adequate but not easy to read.

Crux SWRTY-61J Wiring Interface

Written by: knight from California on August 4, 2015

Crutchfield Customer Review (What's this?)

great product

Pros: easy to program, and use

Cons: none

Would have liked more install details

Written by: SteveM from Santa Cruz, CA on July 25, 2015

2003 Toyota 4Runner
Crutchfield Customer Review (What's this?)

This was pretty easy to install, but I wish they had a little more detail about the install. This unit has more wires on it than my car and stereo needs, and this install needed two wires from this unit connected to one wire from the radio. I had to find out by driving around and noticing poor FM reception. Instructions from radio said power to amp OR antenna. I have an amp, and my antenna is built into the window and I didn't know it needed power. Called to verify what I needed to do and they helped me, but I had to do a full second dash pull to get to the wires. I know that some models of car this is for are different than others, but it would be great if they added these little tidbits of install help somewhere. It would also be nice if they offered wire nuts like they offer the screw pack, as that was one thing I had to run to the store for.

Pros: Everything works the way I want and the wiring was pretty easy to do, once I knew what i needed.

Cons: Had to get back inside the dash and update connection because instructions weren't obvious to me.

Crux in 2006 Tundra DC

Written by: JD from Hamilton, NJ on July 15, 2015

Crutchfield Customer Review (What's this?)

Bought this unit with the intention of keeping the factory amp and avoid having to run the other optional bypass harness to the back of the truck to bypass the amp. This unit does not connect well to the factory pin connectors which leaves a lot of static in the stereo. When I grab the 20 pin connector that contains the power wire you can hear the static change and go in and out. It is terrible sounding. This is my second one since I thought the first was defective. Both have had the same result. I assume if you remove the pin connector and wire the wires directly to each other you may solve much of the static issue. I may attempt to do this but that means no putting back the stock stereo without a lot of work. Also when the radio is playing the volume fades in and out based on how well the signal is being received. I am not super concerned since I normally use pandora and hands free phone, but this is very annoying if you use the radio.

Pros: Keep steering wheel controls

Cons: Pin connectors either poorly made or design flaw which causes much static. Radio volume fades in and out

Works as advertised!

Written by: FRizzo from Maryland on July 13, 2015

2004 Toyota 4Runner
Crutchfield Customer Review (What's this?)

Ordered this one piece instead of having to piece together three or four different wiring harnesses. Worked flawlessly!

Pros: Seamlessly allows steering wheel controls to work with aftermarket navi unit

Cons: Bit pricey

Steering Wheel Controls retained

Written by: Ptfgreg from Buford, GA on June 29, 2015

2007 Toyota Tundra
Crutchfield Customer Review (What's this?)

I was able to keep the steering wheel controls in my '07 Tundra.

Pros: Worked

Cons: Had to call technical support to wire correctly. Technical support very helpful and easy to do business with.

0 for 2

Written by: Jesse from Indiana on June 25, 2015

2006 Toyota Sienna
Crutchfield Customer Review (What's this?)

First unit had the pulsing digital noise with the light flashes that others have mentioned. Crutchfield support immediately recognized the problem and got a replacement out right away. The second unit functioned "properly" but audio was terrible. The volume would fluctuate like a kid was playing with the volume and at one point, I faded a movie to the rear for the kids to listen to and lost almost all audio. The worst part being, it wouldn't fade back to the front until we turned the vehicle off then back on. The audio quality wasn't nearly as good as the factory system. Again, support was helpful, but as it turns out, the Toyota/JBL amp uses a digital input to the amplifier and does the fading at the amplifier. Problem being, if your factory head unit dies and the volume wasn't set at 75% with fade and balance centered, you're outta luck. That wasn't in any of the literature. Now, with a PAC interface for the steering wheel controls and a Metra bypass harness, the system sounds like it should... at least without the sub and center speaker. :\

Pros: Steering controls were easy to program and worked flawlessly.

Cons: Couldn't interface well with JBL amp.

Install of Wiring Interface

Written by: Dand from Texas on May 29, 2015

2007 Toyota Sequoia
Crutchfield Customer Review (What's this?)

Pretty easy to install. The instructions are very basic...and could possibly use some additional clarification, but the Crutchfield team was readily available to answer all my questions. Works great!

Pros: Do most of the wiring connections outside of the vehicle, and then bring the entire harness to the vehicle and just plug it in!

Cons: Instructions could use a bit more clarification. I had a couple of different questions that were readily resolved by Crutchfield pros.

Good not great

Written by: jgerend from California on May 26, 2015

2006 Toyota Tundra
Crutchfield Customer Review (What's this?)

Good for the features of the product, may have more to do with Toyota's lame stock JBL system. But so far after the first unit did not work the second one seems to be holding up.



Excellent product and support from Crutchfield

Written by: Anonymous from Portland, Oregon on May 25, 2015

2004 Toyota Sienna
Crutchfield Customer Review (What's this?)

Easy installation with clear diagram. I used this adapter in my 2004 Toyota sienna with Stony receiver. I had a small issue with the steering wheel "mode" button. It only turned off the radio. I contacted Crutchfield who sent out a new interface board which fixed the problem. Great support from Crutchfield.

Pros: All controls work. Jbl amp works as expected. Great support from Crutchfield.

Cons: The headphone amp for the middle passengers is disconnected using this harness. Not a big deal as we never use it.

Crux Cabling Harness

Written by: David from Arizona on May 10, 2015

2007 Toyota Tacoma
Crutchfield Customer Review (What's this?)

Saves time and easy to install. Eliminates a lot of guess work. Would definitely buy this item again. Thanks for the recomendation

Pros: easy to use and install. good way consolidate the connection

Cons: none.

Great in concept

Written by: RichB from Delaware on May 6, 2015

2008 Toyota Sequoia
Crutchfield Customer Review (What's this?)

Just had this professionally installed in my 2008 Toyota Sequoia with a Pioneer AVH-X5700BHS head unit. Upon driving away from the shop I noticed a pulsing sound about every 5-7 seconds. It happens no matter the source chose, and is audible even when the sound is attenuated. It's Very Annoying. I made a U-turn right back to the shop and the owner told me upon hearing the sound he said it was the Crux and to call Crutchfield and ask for a swap, so I did. It's going to be a few day wait until it arrives then I need to go back. Annoying to say the least.

Pros: As far as I can tell, the volume, mode and seek controls work. The "talk/voice" button functions as an "attenuate" button, which is just fine.

Cons: The noise is unbearable and really makes the radio undesirable. I hope the replacement Crux box takes care of the problem.

Crux SWRTY-61J Wiring Interface

Written by: Alan From Georgia from Georgia on May 2, 2015

2005 Toyota 4Runner
Crutchfield Customer Review (What's this?)

Works great.

Pros: As described

Cons: N/A

Steering wheel control adapter

Written by: Duncan from Alaska on April 20, 2015

Crutchfield Customer Review (What's this?)

Works as it should / Easy to Install



Very satisfied

Written by: Tim from Maryland on April 20, 2015

Crutchfield Customer Review (What's this?)

First I hooked this up to my Tundra with a Pioneer and then I swapped the Pioneer for a Kenwood. Functioned flawlessly with both. Love that I can keep the controls functioning.



No good

Written by: Anonymous from Monroe WA on March 30, 2015

Crutchfield Customer Review (What's this?)

It is making noise with my Toyota with jbl system. They are sending a replacement.


Cons: Making noises with factory jbl system.

Exactly what was needed!

Written by: Tickle Fingers from Denver, CO on March 29, 2015

Crutchfield Customer Review (What's this?)

I picked this over the other options, due to the size and ability to accomplish what I needed in one unit. Wiring to the stereo harnes was simple. This went into a 2008 limited 4runner and it ultimately accomplished what it was purchased for, which was to sync with the JBL and the steering wheel controls. The harness was long enough to tuck out of the way below the HU and somewhat easy to keep the wires in order. The instructions are a little vague. One single page could include the procedure for the JBL system adjustments before you remove the factory navigation. You need to zero the fad, balance, treble, mids and bass. You also need to turn the stock unit volume to 3/4 before turning off the ignition. These instructions make no mention of this. Once installed the sound is great. No delay on turn on and the steering wheel controls work perfect. The next test will be time. How long does it last? It looks well built, but looks can be deceiving. Ultimately I would give this a recommendation.

Pros: Easy, well built, quality sound and operation.

Cons: Better instructions needed

Scratching sound

Written by: Bernard from Bakersfield, CA on March 20, 2015

2004 Toyota Sienna
Crutchfield Customer Review (What's this?)

After having my new JVC head unit installed and interfaced with this device professionally, I had to return to the shop because of a noticeable periodic scratching sound that can be heard even with the engine off or with the unit playing or at pause at whatever mode. The technician at the shop told me that the interface was not compatible with the OE JBL amplifier and so I have to jump to what they had to offer from their shop which cost me $215 for a new interface to rid of the annoying scratching sound and another $90 to regain functionality of the steering wheel controls.

Pros: The functionality of interfacing the steering wheel controls with the unit and the speakers and subwoofer

Cons: The scratching periodic sound allegedly borne out of the incompatibility of the interface with the JBL amplifier of the 2004 Toyota Sienna van

Does what it says it says.

Written by: SWD from Tennessee on March 17, 2015

2005 Toyota 4Runner
Crutchfield Customer Review (What's this?)

I did not do the install myself. I took a long look at the wiring and decided to let a local shop do the work. They do not carry the Crux brand but seemed to have no isses getting everything working.

Pros: Allows use of steering wheel controls and discreet JBL amp all in one relatively small box.

Cons: wiring was intimidating to me, but I think that would have been the case with any interface box.

Cruz interface

Written by: Michael from Windsor, Colorado on March 16, 2015

2006 Toyota Tundra
Crutchfield Customer Review (What's this?)

I am very pleased with the product and will use it again on my next vehicle that needs a stereo replacement.

Pros: Works well, steering controls are funcional and is exactly what was indicated when it was bought.

Cons: It has a slight hicup, if the volume is rapidly changed on the steering wheel then it gets confused and changes the channel.

High Quality Harness Interface

Written by: TR from Raleigh, NC on March 6, 2015

2007 Toyota Tacoma
Crutchfield Customer Review (What's this?)

Great compact way to save my JBL interface and steering wheel controls on my Tacoma. The tech support at Crutchfield is absolutely the best in the business. The only beef I had with this set up is that it barely fit in the dash of my Tacoma. It didn't help I also installed a massive radio (Pioneer AVIC-8000NEX) which I highly recommend!!!

Pros: Quality, easy installation, great tech support!

Cons: harness a little bulky/wires long so plan carefully how to route harness prior to installing radio. Its not really a con but its the only issue I had. Probably had a lot to do with the limited space in my Tacoma

worked great

Written by: kojo from North Carolina on March 5, 2015

2005 Toyota 4Runner
Crutchfield Customer Review (What's this?)

This worked great. used this to install my Jensen Vx 7020 and it worked perfect, Steering wheel control and everything works. Also cheaper than getting multiple harnesses from Metra.

Pros: Ease of Use One Harness for everything


Crux Wiring Interface

Written by: Luis from Page, Az on February 28, 2015

Crutchfield Customer Review (What's this?)

The install was fairly easy although instructions could have been more clear. I bought this to use with the Jensen VX7020 and they are compatible with each other but I was sent the old instructions which did not have the correct sequence for dip switches for set up with the Jensen unit. After a few days of looking around, I found an updated instruction sheet that I was able to download a pdf file of. Despite this set back, the Crux unit itself has worked flawlessly.

Pros: Works great

Cons: Sent with out dated instructions, hopefully has been corrected.

Great Unit - saved money!

Written by: Louieography from Colorado on January 28, 2015

2006 Toyota 4Runner
Crutchfield Customer Review (What's this?)

Adviser recommended this unit and it was cheaper than the other option. Easy to intall and works perfectly in my 2006 4Runner Limited.

Pros: Less Expensive and works great


Crux SWRTY-61J Wiring Interface

Written by: david from California on January 12, 2015

Crutchfield Customer Review (What's this?)

followed directions soldered all connections. Steering wheel controls don't work correctly. Speakers and balance controls work fine.

Pros: Easy to follow directions

Cons: Steering controls don't work correctly

Crutchfield response on January 14, 2015 We forwarded this review to our Technical Support team for follow-up. Lifetime tech support comes with every Crutchfield purchase.

Crux SWRTY-61J Wiring Interface

Written by: Anonymous from Florida on January 9, 2015

2004 Toyota Tundra
Crutchfield Customer Review (What's this?)

easy install questionable performance. I believe I received a defective unit will up date review when I install new unit



Crux SWRTY-61J Wiring Interface

Written by: SA Seats from Texas on December 28, 2014

Crutchfield Customer Review (What's this?)

Works great. Installed in a 2007 Toyota FJ Cruiser with 9 speaker system including subwoofer. Non Infinity amp. Had to switch to the 61S model which cost a little less. Easily installed with Crutchfield installation hardware and guide. New head unit was Sony XAV 602BT.

Pros: The first think I will say is that the Crux customer support was amazing. They will go above and beyond the call of duty to help with technical support. Crutchfiled's support is very good also.

Cons: None

It works!

Written by: Ken from New Mexico on November 27, 2014

2005 Toyota Sienna
Crutchfield Customer Review (What's this?)

Since I have steering wheel controls AND a separate amplifier in our Toyota Sienna, I needed more than the standard steering wheel control interfaces with the install of our new video receiver. Everything worked great as soon as we had it installed. Thanks to Crutchfield tech support that confirmed that the extra dangling wires that we had left over were for other installation possibilities and not needed for ours.

Pros: Hooked it up and it worked the first time. Incorporated both the steering wheel controls and separate amplifier in a single unit.

Cons: No YouTube videos that we could find that helped with this model.


Hands-on research

What's in the box?

Download the Crux SWRTY-61J Wiring Interface manual

  • Radio replacement interface module (w/ attached T- harness)
  • SWC harness
  • Installation Instructions

Product Research


Radio Replacement Interface for Toyota & Lexus: The CRUX SWRTY-61J is a radio replacement interface for select 2003-2011 Toyota vehicles with factory JBL amplifiers. It facilitates the integration of select aftermarket radios to enable retention of certain factory features when replacing a factory-installed radio. This enhanced interface retains the factory JBL amplifiers, aux input, and is also pre-programmed for retention of steering wheel controls.

Note: This CRUX adapter will only retain steering wheel audio controls with car stereos made by Pioneer, Sony, Jensen, Alpine, Clarion, Kenwood, JVC, and Blaupunkt.

Vehicle Compatibility: The CRUX SWRTY-61J is supported by the following Toyota & Lexus vehicles; with factory JBL amplified systems (as of 10/8/2014).

Make Model  Year
Toyota 4-Runner 2003-2011
Avalon 2005-2011
Camry 2007-2011
FJ Cruiser 2007-2011
Highlander 2008
RAV4 2006-2011
Sequoia 2003-2011
Sienna 2004-2011
Solara 2004-2011
Tacoma 2005-2011
Tundra 2003-2011
Venza 2009-2011
Lexus GS 2006-2009
RX330/350 2006
RX400h 2006-2008
Note: Please consult Crutchfield's Outfit My Car to see if your vehicle is compatible and what additional installation accessories will be needed.

Supported Aftermarket Head Units: The CRUX SWRTY-61J radio replacement interface will only retain steering wheel audio controls with car stereos made by Pioneer, Sony, Alpine, Clarion, Kenwood, JVC, and Blaupunkt.

Factory JBL Amplifier: The CRUX SWRTY-61J retains your vehicle's factory JBL amplifier system and fading capability from the aftermarket head unit. You aftermarket stereo will need to have 4-channel pre-outs.

Steering Wheel Control Compatible: The CRUX SWRTY-61J features a steering wheel control output for compatible aftermarket head units. The steering wheel control output consists of a right-angle 3.5mm connector and a light blue/yellow wire (use the connection that your aftermarket head unit is fitted with). The SWRTY-61J interface module will work with any of the listed aftermarket head units, by setting its three dip-switches (see owner's manual for appropriate setting).

Note: The steering wheel control interface features two 4-pin connectors (labeled - "Pioneer/Sony" and "Alpine/Clarion/Kenwood/JVC"). You will only plug in one of these connectors to the interface module, based on the type aftermarket head unit you are installing.

Auxiliary Input Retention: For select 2007 up vehicles, you get to keep the factory auxiliary (3.5mm) input. The included harness contains male stereo RCA connectors which plug into your aftermarket head unit's rear-panel Aux input. If your aftermarket head unit contains a 3.5mm Aux input, then you will need a female stereo RCA to male stereo minijack adapter cable (sold separately).

Wiring Harness: The included harness features the following wires which will need to be hardwired (solder or crimped) to your aftermarket head unit's wiring harness.

Wire Color Function
Black Chassis Ground
Red +12 Volt Accessory
Yellow +12 Volt Constant
Orange Illumination
Blue Power Antenna
White RCA Leads Left Front Speakers
Gray RCA Leads Right Front Speakers
Green RCA Leads Left Rear Speakers
Purple RCA Leads Right Rear Speakers
Note: Installation tools, hardware, & accessories are not included & sold separately.

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Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Part of the suggested package. [ Edward  Feb 10, 2016 ]
Allows for steering wheel controls to be retained with an aftermarket radio installation [ Kathleen  Feb 07, 2016 ]
Just ordered it. Recommended interface kit by Crutchfield. Hoping for stable use of steering wheel controls. We shall see. [ Robert  Feb 07, 2016 ]
necessary for installation [ Derrick  Jan 12, 2016 ]
To continue to use my steering wheel controls [ PAULA  Jan 10, 2016 ]
one piece solution to hook up after market radio and retain all of vehicles OE fu functions. [ Eric  Jan 07, 2016 ]
It gives me all I need to install my system. [ Natalie  Dec 15, 2015 ]
to keep my steering wheel controls [ Barry  Dec 10, 2015 ]

2 questions already asked

Yes. This will work with the factory JBL sound system. However, I would recommend contacting an Advisor before placing your order to be sure you get all the install pieces you will need. [ Jeff  Apr 20, 2015 ]  Staff
Enter an answer to thI had the same surging in my '04 Sienna, the second time I bugged the tech advisers about it, I was told I needed: Scosche SLC4 Line Output Converter, to alter the speaker signal to the factory pre-amp. (It was expressed shipped at no charge.) I think the pre-amp may need to be bypassed completely because I still don't like the mix, the balance and the surging, from the Sony head question. [ John  Nov 30, 2015 ]
I installed this on a 2005 4Runner. I haven't had any issues with a reduction in volume. I made sure to discconnect the mute wire before installation, because the OEM JVC system had an auto mute on it that deviated the volume based on speed. [ Richard  Jan 31, 2015 ]
I have a 2004 Tundra and after I installed a new head unit with all the interface controls the audio sound fades in and out, it is sort of like the power is surging. Crutchfield said I may have a speaker going bad but I have not been able to confirm if that is the case. The stock system never had that problem. It is more prominent with CD and iPod input, radio seems normal. [ Chris  Jan 30, 2015 ]
Turn the subwoofer option to no subwoofer on ur receiver. [ WILLIAM  Jan 30, 2015 ]
Let me know if it resolves your issue. Thanks [ FELLOU  Jan 30, 2015 ]
Yes, I purchased this unit for a 2004 Sienna in addition to a new radio. I noticed that audio would fade in/out randomly. If I squeezed the Crux SWRTY unit slightly, the audio would normalize. I called Crutchfield Support and told them about the issue. They shipped me a replacement immediately and I returned the defective one. The replacement worked and continues to work fine, over 3+ months. Hope this helps. [ ANASTASIO  Jan 30, 2015 ]
Yes. Ever since I installed this unit. Audio sounds like it breaths in and out. Thanks [ FELLOU  Jan 30, 2015 ]

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