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Scosche GM5204 Dash and Wiring Kit

Install a new car stereo and retain the steering wheel controls, climate controls, and safety warning chimes in your 2012-up Chevy Sonic (Black)

Item #: 142GM5204B

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8 Reviews | Ask Questions


Price Break:-$160.00

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The 2012-up Chevy Sonic is a great little car, but the design of the multi-function center console makes it difficult to upgrade the factory radio. As a result, too many Sonic owners have been forced to endure subpar factory sound for too long. This package makes it possible to enjoy the great sound of an aftermarket receiver while retaining the factory console's fit, finish, and functionality.

The kit comes with a dash kit and a wiring harness, everything you need to install an aftermarket DIN (2" tall) or double-DIN (4" tall) receiver in your Sonic's dash panel without losing the factory steering wheel audio controls, heating/air controls, or safety warning chimes. Basically, your Sonic's dash console will do everything it does now, and you'll finally enjoy your music the way you've always wanted to.

Available in Black or Gun Metal Gray, the durable ABS plastic dash kit matches the color, texture, and contours of your Sonic's dash.

Please enter your vehicle information or call an Advisor at 1-888-955-6000 to find out if this package is compatible with your vehicle. Due to the sub-dash configuration, there is a mounting depth difference between DIN and double-DIN receivers.

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.

Product Highlights:

  • allows you install an aftermarket DIN or double-DIN receiver in a Chevy Sonic
  • retains factory steering wheel controls, heating/air controls and warning chimes
  • engineered to deliver perfect factory-quality fit and finish
  • black ABS plastic dash adapter matches color, texture, and contours of your Sonic's dash
  • warranty: 1 year
  • Our 60-day money-back guarantee

Scosche GM5204 Dash and Wiring Kit Reviews

Average Customer Review:

8 Reviews

Works perfect

Written by: Rob from Kc, Mo on June 17, 2015

2014 Chevrolet Sonic
Crutchfield Customer Review (What's this?)

Worked perfect in 2014 Chevy sonic with pioneer avh-170dvd. Only problem I had when installing was very little room in the dash and the steering wheel 3.5mm plug became disconnected so it didn't work. Had to take back out and found that. Also the chime is not as loud but I mounted it right above the vents in the dash and helps with the sound level.

Pros: Keeps steering wheel controls , chime , all lights and everything works.

Cons: Chime noise not as loud.

Decent product with poor instructions

Written by: Carl S from Texas on May 26, 2015

2012 Chevrolet Sonic
Crutchfield Customer Review (What's this?)

The wiring kit does what it needs to and connects up well enough. The instructions included with the kit did not match the instructions available directly from the scosche web site and oddly was missing the entire section with the wiring diagram. The instructions also left out that the ground and power lines from the radio would need to be mated up with several wires from the wiring kit. I liked that the speaker wires in the kit were labeled since I have some trouble with color blindness. The new chime is very quiet compared to the one built into the radio.

Pros: Works well and fits nicely into the space in the dash especially if you are installing a single DIN. The wires in the kit are labeled.

Cons: Included instructions were incomplete. The chime is very quiet.

Beautiful Fit!

Written by: Steve B from Pennsylvania on March 26, 2015

Crutchfield Customer Review (What's this?)

I ordered this product to go with the Kenwood DPX501BT HU I got from Crutchfield. Installed it in my 2112 Sonic sedan. At first I was very apprehensive about taking part of the dash apart, but after some internet help, my concerns were laid to rest(Crutchfield does Not have a MasterSheet for my 3 year old vehicle yet.). The instructions included with the Scosche kit were very easy to follow. I do not have steering wheel controls on my Sonic so I cannot comment on that, but the wiring harness matched the Kenwoods perfectly. Attaching the AC/Heat vents to the new face plate was a snap. literally! And everything fit together perfectly. Yes there is not a lot of room in there for the boxes that come with this unit, but there is space on the the drivers side behind the "cubby". I mounted the small chime box, which is not overbearingly loud, in there with velcro as opposed to screws. All in all this kit, while even at "1/2 price." is a little expensive, works great and made this install easy.

Pros: Good seamless fit. Color a perfect match. Wire Harness perfect match.

Cons: None yet.

Easy install. Comes with everything needed

Written by: Anonymous from Phoenix Arizona on March 9, 2015

2012 Chevrolet Sonic
Crutchfield Customer Review (What's this?)

Kit comes with everything you need. It's easy to install and it looks nice. The only thing I didn't like was the color of the kit being different. It's a darker gray than factory so it doesn't match.

Pros: Easy install Perfect fit

Cons: Different color

Ok, but.....

Written by: dw from Northern NJ on December 22, 2014

Crutchfield Customer Review (What's this?)

Fits ok, with some imperfections (particularly at the top edge) but the main reason I bought this was to keep the steering wheel controls and that doesn't work either because the unit is defective or because it is not as compatible as indicated.

Pros: Fits well and is color matched well.

Cons: Some edge imperfections; lost steering wheel controls

Crutchfield response on December 24, 2014 We forwarded this review to our Technical Support team for follow-up. Lifetime tech support comes with every Crutchfield purchase.

Scosche GM5204 Dash and Wiring Kit

Written by: nooem from Alabama on December 1, 2014

Crutchfield Customer Review (What's this?)

Pretty easy install but take special care to match up and connect everything before you are ready to do the install. Saves aggravation once you are ready to put the unit in. Not much room in a Chevy Sonic for the additional boxes and wiring but will slide in the opening behind the framing on the drivers side. Steering controls work after install but be sure to use the little chime box or you get no notifications from the vehicle (key in ignition warning, lights on warning, door open, etc) You need to be sure to match all the colors from the adapter side and the radio side. Will have multiple wires tied together for ground and power.

Pros: Works as advertised and makes for clean looking install.

Cons: Don't like chime attachment and bulk of adapter kit.

sonic installation kit

Written by: DJ Sonic from galena ohio on March 22, 2014

Crutchfield Customer Review (What's this?)

Semi simple installation. I still don't have my steering wheel controls for some reason. I did hook everything up. But looks great!

Pros: Semi simple, looks good.

Cons: Lost my steering wheel controls.Lost onstar.

Scosche GM5204 Dash and Wiring Kit

Written by: Anonymous from Fort Wayne, IN on April 25, 2013

2012 Chevrolet Sonic
Crutchfield Customer Review (What's this?)

A great piece to switch a factory unit to aftermarket

Pros: Easy setup

Cons: The price, considering if you have onstar

Hands-on research

What's in the box?

Download owner's manual

  • GM replacement interface module (230GM27SR)
  • Steering wheel remote harness
  • Chime
  • Radio housing
  • Pocket
  • 2 Brackets
  • 6 Self-tapping screws
  • 2 Screws
  • Instructions

Product Research


Overview: The Scosche GM5204 OEM Integration Kit allows you to replace your 2012-up Chevy Sonic's factory radio with an aftermarket head unit to improve the overall sound quality of your car audio system. The included dash kit is constructed of ABS plastic and designed to match the color, texture, and contours of your dash. The dash kit fits both double-DIN and single-DIN aftermarket head units. A GM replacement interface (230GM27SR) with SWC harness and external chime is included to retain factory steering wheel controls and warming chimes.

Note: Please consult Crutchfield's Outfit My Car to see if your vehicle is compatible.

Our Product Research Team

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