Thread: Special wiring harness for aftermarket stereo for newer gp

Originally Posted by I800C0LLECT

Axxess GMOS-01 - Car data bus interface


There's cheaper ones that utilize an internal speaker vs. integrating w/your factory speakers but I can never find it online. I grabbed one from a local audio shop for ~$25

So when it says its supported for a non amplified gm vehicle what does that mean?