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Crux CS-GM43 Wiring Interface

Replace your factory radio and retain your steering wheel audio controls in select 2019-up GM vehicles

Item # 249CSGM43

Crux's CS-GM43 wiring interface lets you install a new radio in select 2019-up GM vehicles while retaining many of...

Find what Fits your vehicle

Crux's CS-GM43 wiring interface lets you install a new radio in select 2019-up GM vehicles while retaining many of...

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Item # 249CSGM43

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$129.99

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About the Crux CS-GM43 Wiring Interface

Crux's CS-GM43 wiring interface lets you install a new radio in select 2019-up GM vehicles while retaining many of your vehicle's important features. You'll be able to keep your steering wheel audio controls as well as your warning chimes, retained accessory power (R.A.P.), and backup camera (in select models). The interface module also provides 12V accessory, illumination, and reverse outputs. The package includes two wiring harnesses to connect your new radio to the factory wiring and two steering wheel control harnesses for different brands of aftermarket stereos.

Crux's CS-GM43 wiring interface lets you install a new radio in select 2019-up GM vehicles while retaining many of your vehicle's important features. You'll be able to keep your steering wheel audio controls as well as your warning chimes, retained accessory power (R.A.P.), and backup camera (in select models). The interface module also provides 12V accessory, illumination, and reverse outputs. The package includes two wiring harnesses to connect your new radio to the factory wiring and two steering wheel control harnesses for different brands of aftermarket stereos.

This interface is designed for vehicles that will have the factory amp bypassed or have unamplified systems. Note: does not retain Bose factory amp or OnStar. Please contact an Advisor at 1-888-955-6000 to see if the CS-GM43 interface is compatible with your vehicle.

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Product highlights:

  • retains steering wheel audio controls
  • retains backup camera in select models
  • retains warning and safety chimes
  • keeps retained accessory power (R.A.P.)
  • provides accessory power
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # CS-GM43

What's in the box:

  • Radio replacement interface module
  • CS-GM43R harness
  • CS-GM43S harness
  • 2 SWC harnesses (with 3.5mm connector and Blue/Yellow wire)
  • 2 SWC harnesses (with 3.5mm connector)
  • 2 Minijack-to-wire SWC adapter
  • Installation Instructions

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More details on the Crux CS-GM43 Wiring Interface

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Features

Vehicle Compatibility: The Crux CS-GM43 radio replacement interface module is specifically designed for select 2019-up GM vehicles that feature non-amplified factory audio systems or that will have their factory amps bypassed.

Make Model Year
Cadillac XT4 2019-up
Chevrolet Blazer 2019-up
Camaro 2019-up
Colorado 2019-up
Cruze 2019
Equinox 2019-up
Malibu 2019-up
Silverado 2019-up
Sonic 2019-up
Spark 2019-up
Volt 2019
GMC Acadia 2019-up
Canyon 2019-up
Sierra 1500 2019-up
Terrain 2019-up

Notes:

  • The CS-GM43 is compatible with following factory radios - IOR, IOS, IOT, and IOU. The radio code can be found in the vehicle's glove box. Newer model GM vehicles are now using a QR code label. If the Service Parts Identification Label is not located in the glove box, reference the Vehicle Certification Label on the driver's door jam opening for the QR Code.
  • 2 harnesses are included, but only one will be used based on your vehicle's radio code. The SWCGM-IOS-IOT-IO harness (CS-GM43S) will be used in vehicles with an IOS, IOT, or IOU factory radio installed. The SWCGM-IOR harness (CS-GM43R) will be used in vehicles with an IOR factory installed radio.
  • In some of GM vehicles with a factory radio code of IOR, IOU or IOS; the radio control module is located at the front passenger side (by the door hinge). In these cases, a Crux GM49R-EXT or GM49S-EXT 5' extension harnesses is required and sold separately.

Retained Factory Features: The Crux CS-GM43 facilitates the replacement of the factory radio in a compatible 2019-up GM vehicle with an aftermarket head unit, while retaining important factory installed features - such as steering wheel controls, backup camera, RAP (Retained Accessory Power), and warning chimes.

  • Steering Wheel Controls: The Crux CS-GM43 lets you retain your vehicle's factory steering wheel controls. There are two steering wheel control harnesses; you will only use one based on the brand of your aftermarket stereo. Both feature a 4-pin connector which plugs into the interface module. One of the SWC harnesses is equipped with a 3.5mm connector and one blue/yellow wire (for Alpine/Clarion/JVC/Kenwood/Jensen/Dual/Boss), while the other is only equipped with a 3.5mm connector (for Pioneer/Sony). There are three dip-switches on the interface module that allow you to program the CS-GM43 to work with your aftermarket stereo (see Installation Instructions for DIP Switch Settings.
  • Backup Camera: The CS-GM43 allows you to retain your GM vehicle's backup camera through the interface harness's male composite video connector. Your aftermarket in-dash stereo must have a composite video camera input and a built-in video monitor. Backup camera retention is only possible in GM vehicles with an IRO factory radio installed (excluding the 2019-up Chevy Camaro).
  • RAP (Retained Accessory Power): The ignition power source of most GM vehicles keeps the radio on until one of the doors is opened; this feature is lost when replacing the factory radio with an aftermarket head unit without the proper installation accessories. The CS-GM43 is designed to retain the RAP feature and keep the radio powered after the key is off, until the driver door is opened or the OEM timer ends; whichever happens first.
  • Warning & Safety Chimes: The Crux CS-GM43 retains factory warning & safety chimes through the use of an on-board speaker. The volume of the chime speaker is adjustable through a potentiometer on the interface module.

Notes:

  • Does not retain the factory Bose amplifier.
  • Does not retain factory OnStar.

Outputs: The Crux CS-GM43 radio replacement interface module provides a +12V Accessory, Illumination, and Reverse output - simplifying your installation.

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