“What wiring harness do I need for a 2004 pontiac Bonneville. My car has the steering wheel controls and OnStar and I can't seem to find the right one for my car could you please help me. Thank you”
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I found the one for my son's Eclipse by entering the car make and model stereo harness. The manufacturers that you find typically have better tech specs to drill down to make sure you're getting the right one for your car's features.
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