OS-2C - PAC 2003 OnStar Interface for Select 2000-2008 GM Vehicles

• Plug and Play Interface that allows replacement of a GM Class 2 Factory Stereo while keeping the OnStar system
• Onboard Switching and amplification allows audio from the OnStar System to play through the two front factory speakers when OnStar is active
• Will not disable the vehicle data bus, even if interface loses power
• OnStar active LED and Ignition on LED for visual indication
• Smart Sense Mute output to either mute the aftermarket radio or to turn it off when OnStar is active
• Provides a 12V accessory output

• Chevrolet:
  • 2000-2005 Impala
  • 2000-2005 Monte Carlo
  • 2002-2007 Trail Blazer (SLE)
  • 2002-2004 Trail Blazer (SLT) *
  • 2002-2007 Venture
  • 2002-2007 Uplander
  • 2003-2006 Tahoe
  • 2003-2006 Suburban
  • 2003-2006 Silverado
  • 2003-2006 Avalanche
  • 2003-2006 SSR *
  • 2005-2008 Corvette
  • 2005-2008 Colorado
  • 2007 Silverado (Classic)
• GMC:
  • 2002-2007 Envoy (SLE)
  • 2002-2004 Envoy (SLT) *
  • 2002-2007 Montana
  • 2003-2006 Yukon
  • 2003-2006 Sierra
  • 2003-2006 Denali (Sierra and Yukon) *
  • 2005-2008 Canyon
  • 2007 Sierra (Classic)
• Buick:
  • 2002-2007 Rainier
  • 2002-2007 Terraza
  • 2003-2006 Bravada
• Pontiac:
  • 2004-2007 Grand Prix
• Cadillac:
  • 2003-2006 Escalade *
• Hummer:
  • 2003 H2 *
  • 2005-2008 H3

* Note: If Premium Bose is bypassed.

• Yellow – 12V Constant
• Red – 12V Accessory
• Black - Ground
• Orange – Dash Light Dimmer/Illumination
• Green – Left Rear Speaker (+)
• Green with Black Stripe Left Rear Speaker (-)
• White – Left Front Speaker (+)
• White with Black Stripe – Left Front Speaker (-)
• Purple – Right Rear Speaker (+)
• Purple with Black Stripe – Right Rear Speaker (-)
• Gray – Right Front Speaker (+)
• Gray with Black Stripe – Right Front Speaker (-)