PAC OS-1

Harness Features:

• OnStar® interface
• Maintains operation of OnStar for aftermarket stereos
• Incorporates a microcontroller that communicates directly with OnStar's serial data protocal to prevent false triggering thus eliminating unwanted audio noise through speakers
• Onboard amplifier will drive two, 4 ohm speakers in stereo
• Use with existing speakers in front doors or use external/separate speakers
• 12 volt remote out to turn on factory amplifier and mute wire to attenuate the aftermarket stereo
• LED indicator and volume control
• Built in audio isolation circuit eliminates engine noise
• Will not false trigger
• Note: The OS-1 will not work with OnStar® equipped vehicles that have factory radios with RDS (Class 2 headunits). Factory radio's with RDS can be indendified by locating an RDS logo on the front face of the factory radio. OS-1 currently supports trucks and SUV's from 1996-2001 and 1999-2002 Pontiac Gran Prix. Pontiac Grand Prix with Bose® requires a OEM-1 and a AMP-GM21B wire harness
• 1-year SonicElectronix.com warranty

Compatibility List:

• Cadillac:
• 1999 - 2000 Escalade
• 2002 Escalade
• Chevrolet
• 2002 Avalanche
• 1999 - 2001 Blazer (S-10)
• 1998 - 2002 Silverado
• 1998 - 2002 Suburban
• 1998 - 2002 Tahoe
• 1998 - 2000 Venture
• GMC
• 1998 - 2002 Sierra
• 1998 - 2002 Yukon
• Pontiac
• 1999 - 2002 Grand Prix
• 1998 - 1999 Montana
• 1998 - 2000 Silhouette

Connections:

• 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 (-)