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PAC OS-5 Wiring Interface

Install a new car stereo and retains OnStar, safety warning chimes and other factory features in select 2006-2020 vehicles from GMC, Chevrolet, Cadillac

PAC
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• Provides 12-Volt accessory power (RAP)
• Compatible with non-amplified audio systems
• Retains the factory XM satellite radio tuner
• Retains back-up camera signal

See compatible vehicles Learn more about the os5
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List price $429.00
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-54%

$198.99

 with warranty
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Description


PAC brand icon

Authorized dealer

Product Features:

  • Compatible with select 2006-2020 vehicles from GMC, Chevrolet, Cadillac
  • Designed to install a new aftermarket car stereo
  • Provides accessory power (12-volt 10-amp)
  • Retains R.A.P. (retained accessory power)
  • Provides NAV outputs (parking brake, reverse, and V.S.S)
  • Retains all safety and warning chimes
  • Chime volume adjustment
  • Retains factory OnStar and your vehicle's factory Bose amplifier
  • Retains RSE (rear seat entertainment)
  • Retains factory XM
  • Retains back-up camera signal
  • Retains factory BOSE audio systems
  • Dual-zone function
  • Retains the factory XM satellite radio tuner
  • For non-amplified models, or when bypassing a factory amplifier
  • Micro-B USB updatable
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Notes:

1 In Premium Amplified Systems there will be no capability of fading the aftermarket stereo.
2 Not compatible with Chevrolet Express & GMC Savannah equipped with diesel engine.
3 2012 Avalanche, Sierra, Silverado, Suburban, Tahoe & Yukon vehicles equipped with a navigation radio require the OSGMLAN44 harness.
4 In order to retain the factory XM tuner the aftermarket head unit MUST be equipped with an Auxiliary Input, Steering Wheel Controls and a Driver Information Center.

Product history:

PAC OS-5 thumbnail
(newest, current model)
PAC OS-4 thumbnail
(previous model, replaced by PAC OS-5 Wiring Interface)
PAC OS-3 thumbnail
(previous model, replaced by PAC OS-4)
iSimple GMAHLAN thumbnail
(previous model, replaced by PAC OS-3)

Compatible Vehicles


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


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Item Details


Manufacturer:

PAC

Model Number:

OS-5

Weight:

0.50lbs

Internal SKU:

os5

Internal Product ID:

91596

Customer Ratings & Reviews


PAC OS-5 Wiring Interface thumbnail image

5 star
80%
4 star
0%
3 star
0%
2 star
0%
1 star
20%



Durability
3.7
Value
3.7
Features
3.7
Design
3.7
Usability
3.7

Customer Reviews

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very great

I am very happy with this will buy it again

By Kyle on July 16, 2015

38 found this helpful


Didn’t work

It didn’t work start out the box an really disappointed with how much I spent on it.

By Colton on October 16, 2022 Checkmark Icon Verified purchase

23 found this helpful


Product does it all

Definitely worked as it was supposed to, wiring seems like its going to be a pain until you actually do it, and really its no harder than a regular aftermarket radio wiring. I did end up having to bypass the factory pioneer amplifier in my 2007 Equinox because it sounded terrible when I was using it with the amplifier built into the new head unit.

By Donald on July 26, 2020 Checkmark Icon Verified purchase

27 found this helpful


By Louis on February 3, 2024 Checkmark Icon Verified purchase

15 found this helpful


By Nathan on May 19, 2024 Checkmark Icon Verified purchase

11 found this helpful


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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.