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American International GWH-406PIO (Pioneer Factory Radio Version)

Aftermarket Radio Harness for 2006-2008 Select GM Vehicles that have the Pioneer Factory CD Player/System

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This item has been discontinued

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When replacing your factory radio with an after-market car stereo, the Scosche GWH-406PIO wire harness is a must for a quick and clean installation. It eliminates cutting your OE radio plug. After connecting it, your install is simple as the wires will color-match and easily connect to the after-market stereo. Without the Scosche GWH-406PIO, you would have to cut the OE radio plug and manually test each wire to connect to your after-market receiver.

In addition, because you do not have to cut your OE radio plug off, the GWH-406PIO allows you to reinstall your factory receiver if necessary. A great example is if you sold your car, but wanted to keep your after-market radio and re-install your factory stereo receiver. We also recommend the Scosche BOBAZT for a quick connection that is sure to last.

Product Features:
  • Harness for installing an aftermarket stereo in select GM (Chevy/Pontiac/Saturn) vehicles equipped with factory Pioneer audio system from 2006-2008
  • Plugs into the factory harness that unplugs from the factory stereo
  • Works with vehicles equipped or configured with a PIONEER factory audio system
  • Works on standard wiring systems only. Not for vehicles with Bose or On-Star systems
  • Requires locating a switched 12v+ power source for aftermarket radios

Compatibility List:

Vehicles listed below must have originally had the Pioneer factory audio system (Pioneer branded CD player as the factory radio)
  • 2007 Chevrolet Cobalt
  • 2008 Chevrolet Cobalt
  • 2006 Chevrolet HHR
  • 2007 Chevrolet HHR
  • 2008 Chevrolet HHR
  • 2006 Pontiac Solstice
  • 2007 Pontiac Solstice
  • 2008 Pontiac Solstice
  • 2007 Saturn Aura
  • 2008 Saturn Aura
  • 2008 Saturn Aura Hybrid
  • 2006 Saturn ION
  • 2007 Saturn ION
  • 2008 Saturn ION
  • 2007 Saturn SKY
  • 2008 Saturn SKY
  • 2006 Saturn VUE
  • 2007 Saturn VUE
  • 2008 Saturn VUE

Harness Features

Vehicle Sound System
This refers to what kind of sound system the vehicle has. Premium audio systems are generally name brand systems (such as JBL, Bose, Rockford Fosgate, etc) that have been installed inside a vehicle when it leaves the factory. Often they more advanced systems, complex wiring, factory amplifiers, and other features that can make installing aftermarket component difficult.
Standard Sound
Main Harness Function
Different installations on different vehicles require different harnesses. This type is what the harness is considered. Each wiring harness we sell serves a purpose such as installing an aftermarket car stereo, integrating an aftermarket amplifier with your factory car stereo, connecting Bluetooth to your factory car stereo, and more.
Connect/Install an Aftermarket Car Stereo
Additional Harness Features
The various features that the wiring harness provides to your car stereo and/or audio system.
Compatible Vehicle Make
Allows you to view only items that are compatible with your vehicle's make. Does not guarantee that it will work with your vehicle year or model.
Compatible Vehicle Make and Model
The model of vehicle that this vehicle specific product is designed for. Please keep in mind that engine variations can affect the compatibility of the products.


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Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: American International GWH-406PIO (Pioneer Factory Radio Version)