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How to install a steering wheel control adapter

Learn how to keep your steering wheel audio controls when you install a new radio

Learn how to install a steering wheel control adapter

One of the problems with replacing your factory radio with a new receiver, is that those handy audio controls built into the steering wheel won't work anymore.

The way to solve this dilemma is to install an adapter for the steering wheel audio controls, which we offer at a discount when you buy a compatible stereo. In this video, we'll walk you through what's involved in the installation process.

Installing a steering wheel audio control adapter | Video Transcript

When you install a new stereo in your car, you lose the benefit of these — the handy controls built into the steering wheel. That's because those are wired for the factory stereo and you can't just plug it into the back of the new stereo.

But what you can do is install a special adapter like this one, and that's what we're doing today. This adapter lets these controls interface with the new stereo so that you can use them just like you did before.

Plan the wire connections
I did my homework for this installation and downloaded instructions directly from the Axxess website. On their site, you tell them what kind of vehicle you have and they'll tell you right up front whether their adapter works with your car. And from there it's step by step, wire by wire, what you need to do for the installation. I added the color coding just to help myself out a little bit.

Disconnect the battery
I've disconnected the battery and I'm getting ready to pry open the dash panel so I can get the stereo out. That's what this puppy's for. Disconnecting the battery is important, and I want to note, for two reasons. One, I don't want to risk shorting something out so that my dash lights or stereo or A/C doesn't work. And two, there's an airbag sensor in this console and I don't want to mess with that, so I'm doing the job right.

Remove your stereo from the dash
I popped off the top panel, then removed a couple of screws and pulled off the main dash panel exposing the radio. Then four more screws out from the side of the radio and it's free. Now I can get to all the wiring. Next I'll take a look at the adapter. Opening the package I found the instruction manuals, a couple of wiring harnesses, and of course the adapter itself.

Connect the adapter harness and your stereo
At first glance, this harness looks a little intimidating, but don't be afraid of it. You're not going to use all these wires. First, you'll have your power and ground, naturally, and then depending on your vehicle, you'll use one or two of these wires to connect. For example, my car will be using these two. The rest aren't used and I can just tape them up or cut them off, whatever I want to do.

That leaves this big black cable. This is the control cable that'll plug right into most stereos. Now mine is one of the brands that doesn't work that easily, so instead they include this adapter. I plug that in here and then connect one of these two brown wires to a wire that's already on the back of my stereo. Not that bad.

Re-install the stereo
I used Posi-Tap connectors to make all the wiring connections between the adapter harness and my stereo. And now I'm going to re-install the stereo. So I plug this back in. And here's our new adapter and it's harness. Plug this guy in, there we go, and get that down there where I can reach it in a few minutes.

Programming the steering wheel control adapter
Alright we've finished installing the stereo and the adapter, the dash is back together, and I've pushed the adapter out through the bottom of the dash so I can see it, because the next step is programming the adapter. It needs to know what kind of car it's in and what kind of stereo it's connected to. So to do that, I turn on the ignition and watch for the Axxess adapter to start flashing. Once it does, following the instructions, I hold down the volume button on the steering wheel and just wait as it runs through its paces figuring out everything it needs to know. And once the adapter's LED is on steady — no longer flashing — then it's done. After that it's a matter of testing the buttons to make sure they work. And they do.

And that's how you install a steering wheel control adapter. It took a little planning up front and being prepared, but it really wasn't that hard. I chose the Axxess adapter because it was able to program itself on its own, meaning it could figure out by itself which buttons on the steering wheel controlled which functions of the stereo, and that made the process a little easier.

Sometimes it's not able to figure that out, and you have to do it manually, so you have to go in and say "This button controls tracks. This button controls volume up, etc." Instructions for doing that are included, and it's not that hard. It's just another series of steps.

So here's the adapter at work changing volume on the disc. I can change tracks. It'll also let me go through sources. I'm really excited to have these buttons working again, and if you're going to do this in your car I strongly recommend you install the steering wheel adapter at the same time you change the stereo. It'll just save you a lot of work. When you're ready to do it, give us a call. Our advisors will make sure that you get the adapter that works with both your car and your brand of stereo.

Please share your thoughts below.

  • Harry F Worth Jr from Columbia SC

    Posted on 6/16/2020

    Does the ASWC-1 steering wheel adapter work on a 2017 Nissan Altima sr with a pioneer AVH-220EX? And what adapter do I need to hook up factory rear view camera? Is there a guide to show me how to do it? Thank you

    Alexander H. from Crutchfield

    on 6/17/2020

    Harry, we recommend this harness to retain steering wheel controls. For more info on what you might need for installation, be sure to use our vehicle selector. As far as installation goes, your purchase entitles you to free Tech Support, so just give us a call when you're ready to install it.
  • Alfredo villa from Sacramento

    Posted on 5/18/2020

    I Bought this Product from Cruchfield my question is did YouTube Connect the wires from the Pac SWI CP2 Adapter to You Stereo Wires o to the wires coming from You Car Harness Thank You for You Help

    Alexander H. from Crutchfield

    on 5/19/2020

    Alfredo, since you bought your gear from Crutchfield, you can call Tech Support for free help connecting your steering wheel control adapter. Check out our tech support page for details.
  • Alfredo Villa from Sacramento

    Posted on 5/18/2020

    So you just Connect the Pac Swi -cp2 wires to Power, The Black Ground wire

  • Brandon from New Orleans

    Posted on 3/3/2020

    Do the newer stereos and adapters operate EVERYTHING, besides the steering wheel controls? Like for instance, the navigation, does it run along with the On-Star with the GM models, or does that get deleted? And also can the factory Bluetooth mic be used, or does that get left aside to use a built in mic from the stereo? Etc...

    Robert Ferency-Viars from Crutchfield

    on 3/4/2020

    Excellent question, Brandon. And of course, the answer is "it depends." Mostly, it depends on the integration harness that you choose when you get a new stereo. Factory nav is almost always deleted. OnStar is usually retained. Bluetooth mics are usually lost, but your new stereo will have its own mic. When you're shopping for a stereo on our site, add it to your cart and we'll show you the different adapters available and which features they keep or delete. You'll usually have several options (especially with most GMs) from which to choose.
  • Chris Chester from Sanford

    Posted on 11/13/2019

    I got the ASWC-1 from you guys for my 2011 Chevy Malibu and I am trying to use it with my Blaupunkt Dual Din Radio. I installed it by hooking the red to the red on the radio and the black to the black and then I plugged in the jack into the back of the radio. I still don't have any radio controls from the steering wheel and also am I supposed to connect one of the other wires to the radio harness itself if so which one and where because I have searched all over and can't find the answer.

    Alexander H. from Crutchfield

    on 11/14/2019

    Chris, give our Tech Support a call. Since you bought the ASWC-1 from us, they can help you troubleshoot your system for free. Visit our tech support page for details.
  • Hank from San Antonio

    Posted on 9/12/2019

    I'm confused about how your adapter (the black box) is connected to the physical controls on the steering wheel. Are the steering wheel controls hard wired to the adapter (running through the steering column to the radio) or is there a wireless connection (eg. bluetooth)?

    Alexander H. from Crutchfield

    on 9/30/2019

    Hank, usually you'll be interfacing with a wiring harness behind your factory head unit.
  • Clive from Perth

    Posted on 5/26/2019

    I have a JVC KW-R930BT radio installed into a 2012 colorado, the SWC works with music but not with the bluetooth phone with the patch lead I got with the set. is the patch lead an incorrect lead to use

    Alexander H. from Crutchfield

    on 5/27/2019

    Clive, our Tech Support team will be able to help you. If you bought your gear from Crutchfield, you can call Tech Support for free help troubleshooting your system. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. Check out our tech support page for details.
  • michael brafford from Dolores

    Posted on 5/19/2019

    I have a 2017 wrangler and wanted use of the steering wheel controls. I bought this used and prior owners cut into the factory harness for some reason. Is there a way for this adapter to work if I went around the factory plug and just wired it up direct? RP4-CH11 is the adapter I would need.

    Alexander H. from Crutchfield

    on 5/20/2019

    Michael, give us a call to confirm which harnesses you'll need, but yes, you should be able to wire directly. Your purchase will include free Tech Support and they'll be able to help you match wires.
  • George Devora from Ulysses Kansas

    Posted on 3/22/2019

    I bought a stereo harness for my dodge ram truck to install aftermarket stereo but the harness was also for steering wheel. Control will it work with out using that feature

    Robert Ferency-Viars from Crutchfield

    on 3/25/2019

    George, the harness might work without using the steering wheel adapter, but I can't say for sure. The best thing to do is call the harness manufacturer or visit their website. Most manufacturers have lots of detailed info on their sites regarding these harnesses, but a phone call or email is sure to get you the best answer. And if the harness won't work in your situation, return it and come to us -- Crutchfield will make sure you get exactly what you need.
  • Jackie salter from Monroeville

    Posted on 12/13/2018

    I bought a adapter from Walmart. How do I program it to get my controls working?

    Robert Ferency-Viars from Crutchfield

    on 12/14/2018

    Jackie, your best bet is to visit the manufacturer's website or call their customer service number. The adapter is their product and they'll be glad to help you with it. You can purchase Crutchfield Tech Support (90 days of support for $30), but if the adapter is a brand that we don't carry, then our help might be limited since we're not familiar with it. If you're interested, check out our tech support page for details.
  • Josh from Seattle

    Posted on 11/21/2018

    Sure looks easy reading this. Nothing about broken dash pieces, bleeding hands, or not having enough room to get everything back in.

  • Garrick Greathouse from Grand Rapids

    Posted on 11/7/2018

    The instructions for the ASWC-1 Steering Wheel Control that I ordered from you guys specifically say NOT to use taps or barrels, as they add resistance.

    Robert Ferency-Viars from Crutchfield

    on 11/20/2018

    That's a fair point. Garrick. Those warnings were mostly intended for older-style taps and crimping. There is no doubt that soldering yields the most secure and best quality connection. And by all means, you're welcome to do so. We've used Posi-Tap connectors when installing steering wheel control adapters for years without a problem. Just make sure that wire is secure in the barrel of the Posi-Tap (doesn't pull out), or that your wires are tightly twisted together, before inserting them in a Posi-Connector. And if you're purchasing from us, our Tech Support team is always just a phone call away if you run into trouble.
  • Miguel from Miami

    Posted on 10/1/2018

    Hi, I was wondering if you could help me to find the part number of the cable that connects the 2013 Toyota Corolla OEM steering wheel controls to the OEM stereo system of that vehicle? I have been looking for that cable and have not been able to find it. Thanks in advance for your assistance on this.

    Alexander Hrabe from Crutchfield

    on 10/1/2018

    Miguel, we don't sell OEM parts, but you might have luck giving your local salvage yards a call to see if you can find one second-hand.
  • Kaide from Helena, mt

    Posted on 8/14/2018

    Hey guys uh can I buy a new steering wheel with these built in controls for my car since the one I have now is void of those? I know I can get the chinsy snap on ones but I want the built in wheel one. Just looks cool. I have a Kenwood touchscreen and my car is a hundai elantra 2016 model

    Alexander Hrabe from Crutchfield

    on 8/15/2018

    Kaide, I've passed your question along to our team of Advisors. Someone will contact you soon to help find a steering wheel interface that works with your current steering wheel controls. We wouldn't be able to help you with a replacement steering wheel though.
  • Alexander Hrabe from Crutchfield

    Posted on 5/21/2018

    Casey, we actually don't recommend radio replacement for that vehicle since the climate controls are built into the factory radio.

  • Casey Lanza from Linwood

    Posted on 5/17/2018

    Will this work with the sync speak controls on my stearing wheel in my 2010 mercury Milan premier?

  • Alexander Hrabe from Crutchfield

    Posted on 10/20/2017

    Jacob, give us a call to confirm your vehicle. Depending on the radio and your vehicle, it's certainly possible to assign functionality.

  • Jacob

    Posted on 10/20/2017

    I noticed in the video, the steering wheel also has buttons for the hands free phone. This will be my case also. If the stereo has that function, will those buttons work as well?

  • Alexander Hrabe from Crutchfield

    Posted on 10/2/2017

    Jeff, give us a call to confirm which steering wheel control unit you are using. If you bought your gear from Crutchfield, you can call Tech Support for free help troubleshooting your system. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. Check out our tech support page for details.

  • Jeff from Phoenix

    Posted on 10/1/2017

    I am trying to wire this to my 2007 audi a4. In my version with the symphony system the steering wheel controls are dials, so I can't hold down any buttons. How do I program it?

  • Alexander Hrabe from Crutchfield

    Posted on 8/4/2017

    Alan, give our Tech Support a call for free help troubleshooting the harness. You'll find the number on your emailed receipt.

  • Alan from Danville

    Posted on 7/30/2017

    So how do you connect to the 3 pins on the connector (at 45 secs in the video)? I got a connector from Crutchfield, and it has a blank (i.e., no wire) at the SWC connection.

  • Alexander Hrabe from Crutchfield

    Posted on 3/30/2017

    Joe, if you're having trouble steering, you should have your vehicle checked out immediately by another qualified mechanic. While we can't help you with the steering-related issues, if you're having radio-related issues, you can get expert Crutchfield Tech Support - 90 days-worth for $30. Check out our tech support page for details.

  • Joe from Brownsville

    Posted on 3/26/2017

    I bought a boss radio to connect with my 05 chevy malibu i took it to some guy who said he knew how to connect it but when he was changing it he cut some cables that now my car steering wheel is hard to move I left my stock radio on I checked with a mechanic nd he couldn't find any problem under my hood can someone help please or someone has an idea what could be the problem

  • Alexander Hrabe from Crutchfield

    Posted on 9/15/2016

    Leonie, that will depend on your vehicle and potentially the harness available. Give us a call for more details or use our vehicle selector to confirm which gear fits your car.

  • leonie from Deer Park

    Posted on 9/14/2016

    Will my call/bluetooth button on my steering wheel work too? Or just the volume buttons and channel changers

  • Alexander Hrabe from Crutchfield

    Posted on 6/27/2016

    Shanna, if you bought your gear from Crutchfield, you can call Tech Support for free help troubleshooting your system. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. Check out our tech support page for details.

  • Shanna from Dixon

    Posted on 6/25/2016

    I have a 2005 pontiac g6 and I purchased the c2r-gm11b and I want to hook my swi-rc up to it too but the instructions are confusing. I cannot connect the green wire to a blue wire because I do not have a blue wire. I also don't know where to hook up the blue/yellow wire. Help please

  • Alexander Hrabe from Crutchfield

    Posted on 6/3/2016

    Ryuu, our vehicle database spans vehicles sold only within the U.S.. You may be able to find recommendations on forums that discuss the Honda City specifically.

  • Ryuu from Malaysia, KL

    Posted on 6/1/2016

    Hi, Mine is Honda City 2005 which do not have steering audio control. Can i add it and use? Thanks

  • Alexander Hrabe from Crutchfield

    Posted on 3/28/2016

    Terry, I'm not familiar with Ouku, but these are the compatibility details for the the Axxess Steering Wheel Control Interface: It's universal and can be used on your '05 Expedition with factory steering wheel controls. The aftermarket head unit must have a SWC (Steering Wheel Control) 3.5mm input or steering wheel remote control input wire (blue/yellow).

  • Terry from Boise, Idaho

    Posted on 3/26/2016

    Hello My radio is an Ouku 6.2 inch double 2 din in dash car dvd player with GPS. It has Key1 and Key2 wires. Do you know if it will work with the ASWC-1 It will go into a ford expedition 2005. I have already purchased the correct harness for this car but need to know this one last problem. Hope you can help

  • Alexander Hrabe from Crutchfield

    Posted on 2/22/2016

    Von Aspern, our database spans vehicles sold in the U.S., so we wouldn't be able to make any guarantees about your Prius, which, I presume, you purchased in Germany. However, if you believe your vehicle is the same as those sold in the U.S. in the same year, you can use our vehicle selector to see steering wheel control options.

  • von Aspern from Telgte, Germany

    Posted on 2/18/2016

    I'm exited of your knowledge and your customer care; you're great! My question is about steering wheel control adapters: Can you tell and promise, if there is an adapter that works with my Toyota Prius 3 (ZWV30)? Thank you for answering! Sorry about writing errors, I'm German Greetings Ingo

  • Alexander Hrabe from Crutchfield

    Posted on 2/18/2016

    Rudy, purchasing from Crutchfield entitles you to free lifetime tech support over the phone for your gear and in many cases, we provide custom installation instructions. Our tech support team is available to help you with any roadblocks you may run into as you install your gear. However, in some cases, we do recommend professional installation depending on the complexity of the gear or your vehicle. If you're unsure about your skill level, give us a call and an advisor can help you as you choose the gear you need.

  • rudy olivas from el paso

    Posted on 2/17/2016

    if i bought a product from cruthfield and i need help do i still need to pay for someonr to help me?

  • Alexander Hrabe from Crutchfield

    Posted on 11/23/2015

    Marcus, as long as you purchased the correct harness for your vehicle, you should get full functionality from your radio (without steering wheel controls). Retrace your installation steps and recheck all of your connections to make sure they are secure. Any interruption of signal from the radio to the speakers will cause your system to function improperly. If you bought your gear from Crutchfield, you can call Tech Support for free help troubleshooting your system. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. Check out our tech support page for details.

  • marcus from cleveland

    Posted on 11/23/2015

    If i didnt purchase the harness tht makes the steering work i got the other one do that stop the player from working correctly like cds and dvds to play on the radio cause its not working i want to know do it have something to do with the harness i purchased

  • Alexander Hrabe from Crutchfield

    Posted on 10/14/2015

    Kathie, as we said in the video, we downloaded vehicle-specific instructions from Axxess' very helpful website. So, instructions are readily available no matter where you purchase an Axxess adapter. Although if you purchase from us, you're entitled to free lifetime tech support to help you with installation. For what it's worth, this video is an overview of what it's like to install a steering wheel adapter so that you have an idea of the process, but the details of the wiring will vary depending on the vehicle. Car installations pose their challenges, and the last thing we aim to be is unhelpful. If you have any questions about a product, feel free to call us.

  • kathie from burlington

    Posted on 10/13/2015

    You skipped where to wire the brown and the brown/ white wire!!!! I do believe it was done on purpose, so people have to buy from your company too find out.

  • Alexander Hrabe from Crutchfield

    Posted on 8/10/2015

    Will, if you bought your gear from Crutchfield, you can call Tech Support for free help troubleshooting your system. If not, give the manufacturer's tech department a call. They should be able to help you.

  • Will Sargent from Georgia

    Posted on 8/8/2015

    I have 2 boxes with my steering wheel control adapter i only know what one of them is, I have a 2004 GMC Envoy with an aftermarket JVC KW- V21BT radio installed.

  • Alexander Hrabe from Crutchfield

    Posted on 7/29/2015

    Marcela, give us a call at 1.888.955.6000 and an advisor will be able to help you with the installation gear you need. We do carry the harnesses you will need for that installation.

  • Marcela from Mass

    Posted on 7/29/2015

    I will like yo know if I will need an adapter for my Nissan versa 2014 if a Boss BV9372BI is Installed. It does have steer wheel settings.

  • Rob

    Posted on 7/6/2015

    This video skips the entire wiring step... Worthless

  • Alexander Hrabe from Crutchfield

    Posted on 7/6/2015

    Andrew, if you bought your gear from Crutchfield, you can call Tech Support for free help troubleshooting your system. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. Check out our tech support page for details. Alternatively, you could call Scosche tech support at (800) 363-4490 ext. 3.

  • Andrew from Mass

    Posted on 7/4/2015

    I have an aftermarket Stereo that i have wired in my ford freestyle that works 100% except the wheel controls. It isn't a name brand, but it does have SWK 1 and SWK 2 wires and in radio settings for steering wheel controls. i purchased a Scosche interface and an axxis one as well and cant figure out what to do.

  • Alexander Hrabe from Crutchfield

    Posted on 6/5/2015

    Drew, the Maestro should still work without using the 3.5mm jack - you use the Kenwood's blue/yellow wire instead. Don't forget that you need to "flash" the Maestro with the controls for your car by connecting the Maestro to your computer (just follow the instructions that came with it). If you purchased either the stereo or the Maestro from Crutchfield, our tech support team can help. Just give us a call. You can also call iDatalink's tech support line at 877-212-6169.

  • Drew Fealy from San Diego, Ca.

    Posted on 6/5/2015

    I have just bought a Kenwood KDC BT362U H/U and noticed that the 3.5mm jack on the rear is NOT for my maestro, but for the mic for bluetooth. I see the video here shows that the maestro 3.5mm jack must be plugged into the radio wiring harness to function. I have connected red, black, black/white & purple/red wires specific to my 2007 Hyundai Sonata, but the maestro will not turn on. My Kenwood H/U included a light blue/yellow wire for steering wheel remote control, which I also connectd to the H/U harness. So the 3.5mm jack is about the only thing not currently connected, and my reasoning is this is preventing my steering wheel controls from once again functioning. Please advise.

  • Robert Ferency-Viars from Crutchfield

    Posted on 4/27/2015

    David, if you want to continue using your Civic's steering wheel radio controls when you install your Jensen, then yes, you'll need an adapter. You can find out which adapter will work with that match of car and stereo on our site by pretending to purchase your VX3010 and a steering wheel control adapter, then delete the stereo from your shopping cart. Frankly, the easiest way to get it is to just call us. Our Advisors can look it up and get you the adapter you need right away.

  • David from Florida

    Posted on 4/26/2015

    Can you please tell me if my jensen vx3010 single din radio put into a 2012Honda civic will require a steering wheel audio control?