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PAC GM OnStar® Interface

Model OS-3
Lets you install a brand-name car stereo in select 2006-up GM vehicles with OnStar

Item # 127OS3BOSE

PAC's OS-3 interface lets you replace the radio in select 2006-up GM vehicles while maintaining operation of the...

Find what Fits your vehicle

PAC's OS-3 interface lets you replace the radio in select 2006-up GM vehicles while maintaining operation of the...

Discontinued item

Item # 127OS3BOSE

About the PAC GM OnStar® Interface

PAC's OS-3 interface lets you replace the radio in select 2006-up GM vehicles while maintaining operation of the OnStar® system, turn signal clicks, and all warning chimes. The OS-3 will work with standard GM or premium factory-installed audio systems. Dimensions: 4-13/16"W x 1-1/16"H x 2"D. Warranty: 1 year.

PAC's OS-3 interface lets you replace the radio in select 2006-up GM vehicles while maintaining operation of the OnStar® system, turn signal clicks, and all warning chimes. The OS-3 will work with standard GM or premium factory-installed audio systems. Dimensions: 4-13/16"W x 1-1/16"H x 2"D. Warranty: 1 year.

Note: Please enter your vehicle information or call a Sales Advisor at 1-888-955-6000 to find out if this model is compatible with your vehicle.

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What's in the box:

  • OS-3 GM Bose/OnStar Interface adapter with 18-pin Molex plug on one end and a 16-pin Molex plug on other end
  • CM-X Chime module
  • RAD-18 Harness with attached relay
  • OS-GM14 Harness
  • 9" GM-antenna adapter
  • 31" Dual RCA harness
  • Installation Instructions
MFR #OS-3/BOSE

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More details on the PAC GM OnStar® Interface

Stacey B.

Product Research

Features

Applications: The OS-3BOSE is a plug and play interface that allows for the replacement of a General Motors GMLAN factory radio. The interface will maintain operation of the vehicle's OnStar system, Bose amplifier and speakers. The OS-3BOSE has on-board switching to allow audio from the OnStar system to play through the two front factory speakers when OnStar is active. This interface also retains all warning chimes, the audible turn signal indicators, and the Vehicle Rear Parking Assist System (if equipped). Your rear seat audio headphone jacks will also remain active for use with dual zone radios.

Note: The OS-3BOSE interface does not retain the factory XM receiver. You will lose the XM option when the factory radio is replace with an aftermarket head-unit.

Compatibility: The OS-3BOSE interface is compatible with the following General Motors Vehicles using the GMLAN factory radio.

  • Chevrolet: 2007 Suburban, Tahoe, Avalanche, Silverado (not classic) and 2006-2007 Monte Carlo, Impala
  • GMC: 2007 Yukon Denali, Yukon, Sierra (not classic)
  • Cadillac: 2007 Escalade (including ESV, EXT models and 5.1 audio system)
  • Buick: 2006-2007 Lucerne

Smart Mute Circuitry: The unit's built-in Smart Mute Circuitry will play OnStar through your vehicle's front speakers and allow the rear seat audio jacks to continue playing the source selected at the radio.

Factory Steering Wheel Control Ready: The interface allows you to keep your factory OnStar steering wheel audio controls on Premium Bose vehicles and factory steering wheel radio controls via an optional PAC steering wheel remote adapter (SWI -X, JACK, ECL or PS), sold separately.

RAP System Compatible: The interface allows your aftermarket radio to operate with your vehicle's RAP (Retained Accessory Power) system. The radio will stay on after the key is turned off and stays on for approximately 10 minutes or until the drivers door is opened.

Switched Accessory Output: Once installed, the interface provides you with a +12V switched accessory output.

Dimensions: Below are the dimensions for the OS-3BOSE interface and the supplied CMX chime module.

  • OS-3BOSE Interface: W = 6.372" (with cables), H = 1.099", D = 1.976"
  • CM-X Chime Module: W = 2.062" (with cables), H = 1.017", D = 1.514"

 

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