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Scosche GM23SR Wiring Interface
Connect a new car stereo and retain safety warning chimes and steering wheel audio controls in 2006-up GM vehicles
Our take on the Scosche GM23SR Wiring Interface by Crutchfield's John Pollard
You want to install a new car stereo in your 2006-up GM vehicle, but you don't want to lose helpful factory functions. Thanks to this Scosche GM23SR interface, you can upgrade to the higher sound quality of an aftermarket receiver while maintaining your factory-installed safety and warning features, along with your steering wheel audio controls. All harnesses are included, and this interface includes high- and low-level connections for your aftermarket stereo. Warranty: 60 days.
Important Note: This interface is not compatible with OnStar or "Premium" Bose" audio systems. Your new car stereo must be compatible with steering wheel control adapters. Please check "Details" for more information. See Details for a list of compatible car stereos.
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.
Very easy to install only took about 2 hours. Warning tones are pretty "cheap" sounding and it does not retain the factory microphone for my Chevy's Bluetooth and does not retain the warnings of my backup sensors (also factory).
Logan, Daphne, AL
What's in the Box:
- GM Stereo replacement interface module (S3-1)
- Wiring harness (S3GMLAN)
- Steering wheel control module
- Instruction booklet
- Wiring Instructions/Installation Notes
Scosche GM23SR Wiring Interface Reviews
Average Customer Review(s):
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Compatibility: The Scosche GM23SRstereo replacement interface allows you to replace your factory OEM stereo in select 2006-2011 GM vehicles (GM LAN29-bit), while retaining all necessary safety and warning features as well as retaining your original steering wheel controls (if factory equipped). Please consult Crutchfield's Outfit My Car to see if your vehicle is compatible.
Note: Not compatible with OnStar or "Premium" Bose (y91/y92/z75) audio systems. Please check the service parts code sticker usually located in the glove box for "y91", "y92", "z75" equipment codes.
Safety & Warning Chimes: When replacing the factory radio in your GM vehicle, the GM23SRinterface will replace portions of your vehicle's audible Safety and Warning Chime systems. Without the S3-1, your vehicle will lose these functions when the factory radio is replaced.
ECM Compatible: In addition, the Scosche GM23SRwill send the proper data commands to your vehicle's ECM (Electronic Control Module) to indicate a "healthy" status for diagnostic purposes when your factory radio is replaced with an aftermarket head unit. Otherwise, your GM vehicle's ECM (Electronic Control Module) will store an error code if operated without the factory radio installed and you may experience difficulty in having the vehicle service at the dealership.
Steering Wheel Controls: The Scosche GM23SRstereo replacement interface includes a separate steering wheel control module, which allows you to keep your GM vehicle's factory steering wheel controls when replacing the factory radio with an aftermarket head unit from Alpine, Clarion, JVC Kenwood, Pioneer, or Sony that is OEM steering wheel control compatible. No additional interface or programming is necessary.
High-Level/Low-Level Connections: The included wiring harness (S3GMLAN) provides high-level and low-level connections for your aftermarket head unit. The harness comes equipped with four low-level (RCA) inputs for GM Bose systems. The four low-level (RCA) inputs can be cut off for high-level (speaker) connection for Non-Bose systems.
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Why did you buy this?
Able to keep steering wheel controls and not splice factory harness [ charles Feb 27, 2016 ]
I picked this kit because it is a all in one kit that will keep everything from the warning chimes and turn signals and steering wheel controls in my chevy silverado 1500. The only thing it will not support is onstar, which is fine with me because I will never use that feature in my truck. [ Kevin Dec 14, 2015 ]
1 question already asked
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/. [ Krissy Dec 29, 2014 ] Staff