About the PAC OS2-GM32X Wiring Interface
PAC OS2-GM32X
PAC OS2-GM32X
This PAC OS2-GM32X interface allows you to connect your new radio to the existing wiring in your vehicle and keep your factory features working. You'll keep the features you've become accustomed to such as safety warning chimes, the Bose amplified audio system, Retained Accessory Power (RAP), and the OnStar® system. If you have a standard Bose system, you'll be able to fade from the front to rear speakers with your new car stereo; if you have the Premium Bose system, you'll lose that ability.
The steering wheel controls for OnStar will still work, but you'll need a steering wheel control adapter (sold separately) to connect your new stereo to the Cadillac's steering wheel controls. This interface features a connector that plugs directly into PAC steering wheel control adapters, saving you some time and effort. You'll also lose the factory XM receiver.
Please enter your vehicle information or call an Advisor at 1-888-955-6000 to find out if this interface is compatible with your vehicle. Warranty: 1 year.
What's in the box:
PAC OS2-GM32X Wiring Interface owner's manual
- Radio replacement interface module
- Wiring harness
- Installation Instructions
Featured review
Having the wiring harness put together I feel made it that much Easier in stalling the radio !!! will always do that when I buy a new one great job.
Joseph from Northbridge, MA
Customer Q&A
Q
The 3 pink wires have me confused along with the mute/loop wire?
A
I did not use the pink wires, I think they have something to do with an alarm through your car sound system that would go off if you exceed a set speed.
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Features
Radio Replacement Interface: The PAC OS2-GM32X radio replacement interface allows your to replace the factory stereo in select Cadillac vehicles with an aftermarket head unit and maintain operation of factory features such as OnStar, Bose amplifier, RAP, and warning chimes. It also supports PAC steering wheel control adapters (sold separately).
Vehicle Compatibility: The PAC OS2-GM32X is compatible with select 2000-2005 Cadillac vehicles with GM Class II data-bus system and 32-pin connector (with or without OnStar, and with Bose)
| Make | Model | Year |
| Cadillac | Deville | 2000-2005 |
| Eldorado | 2000-2002 | |
| Seville | 2000-2003 |
Retained Features: The PAC OS2-GM32X radio replacement interface retains the following factory features of your vehicle.
- OnStar: The OS2-GM32X retains your vehicle's factory OnStar system. It allows audio from the OnStar system to play through the vehicle's two front speakers when OnStar is active, and mutes the output of your new aftermarket radio.
- Bose Amplifier: The PAC radio replacement interface lets you retain your vehicle's factory Bose amplifier. Standard Bose amplifiers will continue to fade front to rear. Due to the design of Premium Bose amplifier systems, there is currently no way of fading from front to rear with an aftermarket radio.
- RAP: Your aftermarket head unit will continue to operate with the vehicle's RAP (Retained Accessory Power) system. The aftermarket radio will stay on after the vehicle's key is turned off and then stays on for approximately 10 minutes or until a door is opened.
- Safety & Warning Chimes: The vehicle's factory safety and warning chimes are also fully retained.
Note: The OS2-GM32X does not retain the factory XM Satellite Radio receiver; you will lose this option when the factory radio is replaced with an aftermarket stereo.
+12V/10A Accessory Output: The OS2-GM32X provides a +12V/10A switched accessory output; no more searching for switched +12-volts in the fuse box or kick panel.
Navigation Outputs: The PAC OS2-GM32X provides navigation outputs (VSS, Parking Brake, and Reverse) to help ease the installation process of an aftermarket navigation radio.
Optional Steering Wheel Control Adapter: The OS2-GM32X radio replacement interface supports PAC's SWI-CP2 or SWI-RC steering wheel control adapter (both sold separately), allowing you to retain your vehicle's factory steering wheel controls. The included wiring harness plugs directly into the compatible SWC adapter. You will need to program the SWC adapter.
Wiring Connection Chart: The included harness features the following wires which will need to be hardwired (solder or crimped) to your aftermarket head unit's wiring harness.
| Wire Color | Function |
| Red | +12 Volt Accessory (10A) |
| Yellow | +12 Volt Constant |
| Black | Ground |
| Blue | Power Antenna |
| Orange | Illumination |
| White | Left Front Speaker + |
| White/Black | Left Front Speaker - |
| Gray | Right Front Speaker + |
| Gray/Black | Right Front Speaker - |
| Green | Left Rear Speaker + |
| Green/Black | Left Rear Speaker - |
| Purple | Right Rear Speaker + |
| Purple/Black | Right Rear Speaker - |
| Pink | VSS (Vehicle Speed Signal) |
| Violet/White | Reverse Output (-) |
| Green | Parking Brake (-) |
| Brown | Mute (-) |
Note: Installation tools, hardware, & accessories are not included & sold separately.
The PAC OS2-GM32X Wiring Interface replaces these items
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