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PAC OS-1BOSE OnStar Adaptor Radio Replacement Interface Cadillac, Chevrolet, GMC and Pontiac 1998-2002 Vehicles

$197.99
In stock
SKU
OS1BOSE

Key Features

PAC OS-1BOSE OnStar Adaptor Radio Replacement Interface Cadillac, Chevrolet, GMC and Pontiac 1998-2002 Vehicles
Unit Includes: Interface

PAC OS-1BOSE OnStar Adaptor Radio Replacement Interface Cadillac, Chevrolet, GMC and Pontiac 1998-2002 Vehicles features:
  • Pacific Accessory Corporation OS-1BOSE OnStar Adaptor LAN Data Bus Radio Replacement Interface with Bose Sound System
  • Not compatible with vehicles equipped with an RDS radio
  • Retains OnStar when the factory radio is replaced
  • Retains all safety warning chimes
  • Retains Bose amplified audio system
  • Maintains a healthy status on the Class II databus
  • Plug-in installation for vehicles with 21-pin harness
  • The OS-1 BOSE is a plug and play interface kit that allows replacement of a General Motors factory stereo (without RDS option) and maintain operation of the OnStar system and the Bose amplifier and speakers.
  • The kit includes the OS-1 OnStar interface and the OEM-1 premium sound system interface and cable.
  • The OS-1 has on board switching, and amplification to allow audio from the OnStar system to play through the two front factory speakers when OnStar is active, and mute the new replacement radio.
  • The OS-1 can also be used when a stereo and amplifier combination system is installed. Separate speakers can be added if desired.
  • There are separate gain adjustments for left and right OnStar audio and an LED indicator that turns on when the OS-1 receives an ON command from the OnStar system.
  • Cadillac Escalade* 1999-2000
  • Cadillac Escalade 2002
  • Chevrolet Avalanche 2002
  • Chevrolet Blazer (S-10) 1999-2001
  • Chevrolet Silverado 1998-2002
  • Chevrolet Suburban 1998-2002
  • Chevrolet Venture 1998-2002
  • Chevrolet Tahoe 1998-2002
  • GMC Suburban 1998-2002
  • GMC Yukon 1998-2002
  • GMC Yukon Denali 1998-2002
  • GMC Yukon XL 1998-2002
  • Pontiac Montana 1998-1999
  • Pontiac Grand Prix 1998-2003 [with Bose - This interface is not designed for this vehicle, however, you can order the AMP-GM21B (1998-1999 Grand Prix) or AMP-GM21C (2000-2003 Grand Prix) harness to replace the AMP-GM21A harness to make this interface work correctly]
  • The OS-1 will interface with all GM radios that use the 21 pin/9 pin connectors. If there is a RDS logo on the radio face or the radio uses the 24 pin/12 pin connectors, this interface will not work.
  • *WARNING! (Vehicles equipped with a 9 pin Y connector) Do not unplug the separate 9 pin female and male connectors that are located farther back in the dash. Doing so will disconnect OnStar from the OS-GM9 connector.
  • *Remember to reset OnStar by turning the ignition off for at least two minutes prior to testing.
  • *The AMP-GM21A wire harness will ONLY work on a vehicle with a BOSE premium sound system.
  • OS-1BOSE Product Manual and Installation Instruction Guide
More Information
Manufacturer Metra
Part Number OS-1BOSE
Wiring harness function Replace Factory Radio
Return period 30 days
Exchange period 30 days
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Customer Questions
What do the wire colors of a car stereo mean?
Car stereo wiring is color coded for convenience and simplicity. Each wire color has a specific meaning, we show you what they are.
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Wiring Harnesses Explained

What do all of the wire colors mean? Aftermarket manufacturers have made car stereo receiver installation an easier process by using a standardized wire color scheme. We walk you through what each individual wire does, this way if you have an installation that doesn't perform properly you will have the resources to begin troubleshooting your installation.

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