About the CRUX SOOGM-15 GM Wiring Interface
You'll only be able to retain your steering wheel audio controls with a compatible car stereo made by Alpine, Clarion, Dual, JVC, Kenwood, Pioneer, or Sony. No other brands are currently compatible. Check the Details tab to see if steering wheel audio controls are retained in your vehicle.
Replacing the factory radio in many late model GM vehicles means losing the chime that warns the door is open, along with audible safety warnings. Also, your new car stereo will not work with your GM steering wheel audio controls.
The SOOGM-15 GM Class II Data Bus interface from Crux lets you install an aftermarket receiver in these vehicles and keep the door chimes, all audible safety warnings, and OnStar functionality in select GM vehicles. You'll also retain the use of your factory steering wheel controls in most vehicles (see the compatibility chart in Details — vehicles that do not retain use of steering wheel controls are marked by an asterisk).
Connect the SOOGM-15 to the wiring harness on your new car stereo, mount the module in a convenient location, and plug it into the existing factory plug. Get the great sound you want, and keep all important safety features intact. The SOOGM-15 interface works with all GM audio systems, including Premium Bose® . Warranty: 1 year.
Important Note: If you do not use an interface like this when you replace your factory radio, you will disable the audible warning system in your vehicle. Crutchfield cannot provide a free wiring harness for your vehicle, and we strongly recommend that you use the recommended interface when replacing this vehicle's factory radio. Failure to do so may result in serious injury or death.
Installation Note: If your vehicle has a factory amplifier, you'll lose fader and balance control with the new car stereo. You'll want to set your system's balance and fader controls correctly before installing the new car stereo, as those settings are retained after you've pulled out the old radio.
- lets you install an aftermarket receiver in late model GM vehicles without losing the door chime and audible safety warnings
- works with any Bose® system, retains OnStar® functionality
- retains steering wheel audio controls with a compatible car stereo in most vehicles (see chart in Details)
- dimensions: 3-7/16"W x 1-1/16"H x 2-7/8"D
- warranty: 1 year
- Our 60-day money-back guarantee
- MFR # SOOGM-15
What's in the box:
- 2000-up GM Class II radio replacement interface module (w/ OnStar and SWC retention)
- 15" GM Class II wiring harness (w/ SWC connector)
- Bose adapter
- Antenna adapter
- Installation Instructions
More details on the CRUX SOOGM-15 GM Wiring Interface
Overview: The CRUX SOOGM-15 radio replacement interface is designed to allow the installation of an aftermarket radio while retaining functionality of OnStar, Bose Amplified and Non-Amplified Systems, Chime, and Accessory features in a wide range of GM Class II Data bus vehicles. The SOOGM-15 is a versatile and enhanced OnStar retention interface that includes steering wheel control options. It retains a wide range of factory OEM features with aftermarket radios:
- Works with Non-Bose, Bose, Premium Sound, and Y91 amplified radios (use included Bose adapter if your vehicle is equipped with a factory Bose audio system).
- Retains Factory OnStar and steering wheel controls for most vehicle models (steering wheel incompatibility noted in the table below)
- 12 Volt Accessory output (4 Amp), including RAP (Retained Accessory Power), keeps the radio powered after the key is off, until the driver door is opened or the OEM timer ends, whichever happens first
- Illumination Output (2A. max)
- Telephone Negative Mute Trigger (Input)
- Low Voltage (Battery Run-Down Protection)
- Retains safety & warning chimes
Note: You'll only be able to retain your steering wheel audio controls with a compatible car stereo made by Pioneer, Sony, Jensen, Dual, Alpine, Clarion, Kenwood, and JVC. No other brands are currently compatible.
Vehicle Compatibility: The CRUX SOOGM-15 radio replacement interface works with the following 2000-up GM vehicles with Class II system (as of 9/10/2012):
|Silverado 1500-3500 (Classic)||2007|
|Sierra 1500-3500 (Classic)||2007|
|Oldsmobile||Alero (w/ RDS radio)*||2002-2004|
Note: Where noted with an asterisk (*), the factory steering wheel controls are not retained. Please consult Crutchfield's Outfit My Car to confirm compatibility in your specific vehicle.
GM Class II Harness: The included GM Class II wiring harness features a 24-pin & 4-pin connector which plugs into your vehicle's factory radio harness, plus a 14-pin & 12-pin connector which plugs into the SOOGM-15 interface module. The GM Class II wiring harness also provides the following bare-wire leads which will need to be hardwired to your aftermarket head unit's wiring harness or vehicle wiring.
|Red||+12 Volt Accessory|
|Yellow||+12 Volt Constant|
|Red/Black||VSS (vehicle speed sensor)|
|White||Left Front Speaker +|
|White/Black||Left Front Speaker -|
|Gray||Right Front Speaker +|
|Gray/Black||Right Front Speaker -|
|Green||Left Rear Speaker +|
|Green/Black||Left Rear Speaker -|
|Violet||Right Rear Speaker +|
|Violet/Black||Right Rear Speaker -|
|Lt Blue/Yellow||Steering Wheel Control|
Steering Wheel Control Cable: The included GM Class II wiring harness also features a steering wheel control output for Pioneer, Sony, Dual, Alpine, Clarion, Kenwood, and JVC aftermarket head units. The steering wheel control output consists of a right-angle 3.5mm connector and a light blue/yellow wire (use the connection that your aftermarket head unit is fitted with). The SOOGM-15 interface module will work with any of the listed aftermarket head units, by using its rotary dial (0-5) for appropriate setting.
Installation Note: For vehicles with factory Y-91 Bose Premium audio systems, once you have installed the new aftermarket head unit you will no longer have fader control. Make sure that before removing your factory radio, your system's audio is balanced and faded properly. The factory digital amplifiers will remember these settings even after the factory radio is removed and the new aftermarket head unit is installed.
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