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PAC OS-311B Wiring Interface

Install a new car stereo and retains the safety warning chimes and other factory features in select 2004-2010 vehicles from Chevrolet, Pontiac

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• Provides 12-Volt accessory power (RAP)
• Compatible with non-amplified audio systems
• Micro-B USB Updatable
• Retains OnStar system

See compatible vehicles Learn more about the os311b

We apologize

This item has been discontinued


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Description


PAC brand icon

Authorized dealer

Product Features:

  • Compatible with select 2004-2010 vehicles from Chevrolet, Pontiac
  • Designed to install a new aftermarket car stereo
  • Provides accessory power (12-volt 10-amp)
  • Retains R.A.P. (retained accessory power)
  • Retains all safety and warning chimes
  • Retains OnStar system
  • For non-amplified models, or when bypassing a factory amplifier
  • Micro-B USB updatable
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Compatible Vehicles


Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

The vehicle you have selected 2010 Ford Flex is not compatible. Change vehicle or See list of compatible similar products


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Specifications & Details


Harness Features
Main Harness Function
Connect/Install an Aftermarket Car Stereo
Additional Harness Features
Chime Retention
OnStar Retention
Retained Accessory Power (RAP) Retention
Premium Harness Features
On-Star Compatible
Yes
Chime Retention
Yes
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

PAC

Model Number:

OS-311B

Weight:

0.50lbs

Internal SKU:

os311b

Internal Product ID:

18707

Customer Ratings & Reviews


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.