PAC SWI-CP5 Steering Wheel Control Adapter

Connects your car's steering wheel audio controls to select aftermarket car stereos

Item #: 541SWICP5

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8 Reviews

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You want to install an aftermarket stereo in your vehicle, but you hate to give up the convenience of your factory steering wheel radio controls? No problem. PAC's SWI-CP5 adapter allows you to use the steering wheel audio controls in a wide variety of vehicles to command select radios from Alpine, Clarion, Dual, Jensen, JVC, Kenwood, Pioneer, and Sony.

More features, easy programming

The SWI-CP5 adapter allows retention of steering wheel audio controls, rear seat audio controls, and retained accessory power (RAP) in a wide selection of vehicles. You can also assign two radio functions to each SWC button by using short press/long press functionality. The SWI-CP5 works in vehicles with either data or analog steering wheel control signals.

Installation is straightforward — connect a few wires, then program the adapter for your particular car and your stereo, and you'll retain the convenience of your steering wheel controls. You can program this adapter with your smartphone, with your tablet or PC, from a USB flash drive, or manually. The direct connection to the stereo eliminates the need for an infrared emitter, allowing the adapter to function even in bright sunlight. Step-by-step LED confirmation makes programming easy. Once connected, the SWI-CP5's failsafe memory will learn up to 12 stereo functions, retaining them even if battery power is interrupted. Warranty: 1 year.

Important Note: On some vehicles, you may need a voltmeter to locate the correct wires to connect to the SWI-CP5. If you have no car audio installation experience, you should consider professional installation. The SWI-CP5 works with most Alpine, Clarion, Dual, Jensen, JVC, Kenwood, Pioneer, and Sony car stereos that have a wired remote control input or a dedicated steering wheel input.

Wiring Advisory: You'll usually have to tap into one to three wires in your vehicle at the radio location to connect this interface. If you're using a PAC wiring interface to connect your new car stereo to your vehicle, then it most likely will have a prewired connector for this PAC adapter so no wiring is required. PAC does provide custom wiring instructions for all confirmed compatible vehicles on their web site.

What does a steering wheel audio control adapter do?

Many people aren't thrilled with the sound of their car's factory radio, but don't want to replace it because they'll lose those convenient audio controls on the steering wheel. For most vehicles, you can purchase an adapter that allows you to use those controls to run a new car stereo, so now you can have great sound and convenience too. Even cooler, if your new stereo has iPod controls, you can use your steering wheel controls to run your iPod.

See All Car Stereos that work with this item

Hands-on research

What's in the box?

Download owner's manual

  • Steering wheel control interface module
  • 18" SWC harness
  • 6" USB extension cable
  • Instructions
  • Trouble Shooting

Product Research


Steering Wheel Control Interface: The PAC SWI-CP5 interface allows the retention of steering wheel controls (SWC), rear seat controls (RSC), and retained accessory power (RAP) when replacing the factory radio in select vehicles. The SWI-CP5 works in a wide range of vehicles and eliminates the need for in-line resistors and massive rewiring. It can be auto-programmed for your vehicle simply by using PAC's ControlPRO app on your Apple iOS/Android device or through your Windows 7 computer; it can also be programmed manually.

Vehicle Compatibility: The PAC SWI-CP5 steering wheel control interface is compatible in vehicles equipped with CAN Bus, GMLAN, Class II, LIN Bus, I-Bus, and Analog or Serial Data SWC. Compatible vehicle makes include Acura, Audi, BMW, Buick, Cadillac, Chevrolet, Chrysler, Dodge, Ford, GMC, Honda, Hummer, Hyundai, Infiniti, Isuzu, Jeep, Kia, Lexus, Lincoln, Mazda, Mercedes, Mercury, Mini, Mitsubishi, Nissan, Oldsmobile, Pontiac, Scion, Subaru, Suzuki, Toyota, Volkswagen, and Volvo. Click here for complete list of compatible vehicles.

Note: The PAC SWI-CP5 is equipped with a manual learning function for compatibility with unlisted analog vehicles.

Programming: The PAC SWI-CP5 steering wheel control interface is configurable using either App, Manual, or Flash mode.

  • App Mode: In App Mode, the SWI-CP5 is easily configurable using either a PC, smartphone, or tablet using the SWC module's USB port and PAC's simple downloadable app. Simply download the ControlPRO application (from iTunes, GooglePlay, or Windows) onto your Apple iOS 6.1+ device, Android 3.1+ tablet/smartphone, or Windows 7 computer/laptop. Once the app is installed, plug your Apple, Android, or Windows device into the SWI-CP5's USB port and the ControlPRO app will provide the ability to custom configure the SWI-CP5 interface and your vehicle's original steering wheel controls, to operate the functions of your new aftermarket radio. Click here for tutorial.
  • Manual Mode: In Manual Mode, the SWI-CP5 uses a pre-determined dipswitch configuration to assign the vehicle and SWC button functionality. The dipswitches on the side of the interface must be manually set to the proper configuration by the user. This mode is only compatible in vehicles with both analog SWC and a discrete 12-volt Accessory wire; vehicles with CAN-Bus cannot be manually programmed.
  • Flash Mode: In this mode, the SWI-CP5 can be configured using a USB flash drive and the supplied USB adapter. Simply download your configured vehicle file from the ControlPRO application on your Windows 7 computer or laptop to a USB thumbdrive and plug it into the SWC interface for auto-programming. The dipswitches on the side of the interface must all be set to down which is the default position. When using this method, it is not required to manually program the SWC buttons.
Note: All ControlPRO applications are dynamically updated and include the latest installation documents, control schematics, and product information for your vehicle.

Two-Function Assignment: Use of this interface allows you to program two radio functions to each SWC button by using short press/long press dual command functionality.

Programming Feedback: The SWI-CP5 interface offers audible feedback for programming confirmation and a highly visible tricolor LED  keeps you informed of the SWC module's status.

  • The red LED on the interface will turn on and the +12V accessory output wire will turn on. The green LED will flash each time it sees a steering wheel button pressed.
  • In vehicles equipped with retained accessory power (RAP) the accessory output and the red LED will remain active & keep the radio on for 10 minutes unless the driver side door is opened. In vehicles that do not support RAP the LED and accessory output will shut off when the key is switched or removed from the ignition.

Memory Retention: The PAC SWI-CP5 steering wheel interface retains memory even if power is lost.

Wire Code Chart:

Wire Color Function
Black (-) Chassis Ground
Yellow (+) 12V Constant Input
Red (+) 12V Accessory Input
Red/white (+) 12V Accessory Output
White (-) Analog SWC Input 1
White/black (-) Analog SWC Input 2
White/red (-) Analog SWC Input 3
Light Green (+) 12V Analog SWC Input
Pink (+) Dual Wire CAN Hi input
Pink/black (-) Dual Wire CAN Low input
Dark Green SW CAN Input
Purple Class II Data Input
Yellow/black 12V Serial Data Input
blue HVAC Output
Blue/yellow SWC output for Kenwood and Newer JVC
3.5mm Jack SWC output for Alpine, JVC, Clarion, Pioneer, Sony, Boyo, Dual, Advent, Lightning Audio, or Visteon
Note: We recommend that all wiring connections be soldered to ensure a sturdy and reliable connection.

Product Updates: The SWI-CP5 can be updated with new firmware as it becomes available using the device specific application or a USB flash drive.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

PAC SWI-CP5 Steering Wheel Control Adapter Reviews

Average Customer Review:

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Didn't work with my vehicle

Written By LarryB, Amarillo, Texas on Thursday, March 26, 2015

I can't say that it is a bad product... it may work very nicely in other vehicles. Unfortunately it was not compatible with my 2005 Chevy Cobalt. That vintage of Cobalt doesn't put a switched control voltage on the line to tell the CP5 unit to turn on. Therefore, it never recognizes the steering wheel control signals. The folks at Crutchfield were very helpful in advising me on installation and testing and then were most gracious to allow me to return the item for refund when we discovered the problem. The installation instructions that accompany the product were not easy to follow.

Pros: Unknown - since it was not compatible with my vehicle.

Cons: Inadequate installation instructions. I was able to figure out how to install it, but when it didn't work due to incompatibility with my vehicle, the instructions were not adequate to help me determine the problem.

Crutchfield response on Tuesday, March 31, 2015 Thank you for taking the time to submit a review and, more importantly, for your patience in troubleshooting the problem. Oddly, PAC's site says that the CP5 is compatible with your car. We'll investigate further and update our database accordingly.

pac cp5

Written By Kameron, Mo. on Monday, March 23, 2015

Crutchfield Customer Review (What's this?)

To many different sets of instructions.. paper instructions .. mobil ap car specific head unit specific instructions.. that have a diagram at the top and then say something completely dif at the bottom... wire diagram also didn't match my new jvc unit.. so it didn't work.. $89 down the drain... good luck if you buy it expect to call support.

Pros: looked to be well made very versitile in the videos.

Cons: Poor poor poor instructions...

Crutchfield response on Tuesday, March 24, 2015 We forwarded this review to our Technical Support team for follow-up. Lifetime tech support comes with every Crutchfield purchase.

It doesn't work

Written By Anonymous, oshkosh wisconsin on Saturday, March 07, 2015

Crutchfield Customer Review (What's this?)

Well I have this product and it did not work memory kept on clearing I'm sending it back

Doesn't work

Written By Anonymous, Belen NM on Saturday, February 14, 2015

Crutchfield Customer Review (What's this?)

This product does not work even with the team of experts giving advise

Pros: None

Cons: Wouldn't buy ever again can't get it to work

PAC SWI-CP5 Steering Wheel Control Adapter

Written By Anonymous, Ohio on Sunday, February 01, 2015

Crutchfield Customer Review (What's this?)

Great Product. Love the App and how easy it was to program. Also Made my Install much easier.

Pros: App Programming, small, easy to install

Cons: Wiring Diagrams could tell you a little more about where you hook up to but I figured it all out

PAC SWI-CP5 Steering Wheel Control Adapter

Written By Anonymous, Wyoming, IL on Saturday, January 17, 2015

Crutchfield Customer Review (What's this?)

A little difficult to setup, but I called tech support a they helped get it working in about 30 minutes!


Written By Guyhonda, Yonkers,ny on Sunday, November 30, 2014

Crutchfield Customer Review (What's this?)

Not happy

Pros: Never got it to work. I've hooked up count less radios. cant say theirs a pro

Cons: The instructions in the papers it comes with an the instructions in the app will confuse you. I ended up burning out the unit cause it says hook up yellow blue wire an the paper instructions say only certain models but I entered my radio an car info in the app said used blue yellow ,an the unit started smoking. I threw it out wasted a 100 bucks

Crutchfield response on Wednesday, December 03, 2014 Installing a steering wheel audio control adapter can be tricky, and we always recommend contacting our Tech Support Team before you begin. They can confirm which wires are used and where they should be connected in your car. Crutchfield Tech Support is free with every order.

confusing to install, but worked

Written By Charlie, Garner, nc on Monday, November 17, 2014

Crutchfield Customer Review (What's this?)

The instructions from Crutchfield were confusing. Took three calls in to tech support to get the wiring correct. If you get this it works great if you use the app to get the wiring and use it to program.

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