[Allister12345]

Decided to not use a wiring harness for this job and just cut the wires. Used a wiring diagram to cross reference the wires from the new stereo to to the stock ones coming from car. Matched them all up and the stereo turns but has no audio. If anyone has any recommendations on what to do that would be really really nice

 

[Allister12345]

2007 Chevy cobalt SS pioneer setup

 

[MP81]

I believe the majority of the issues are coming from the fact the factory Pioneer system is amplified - it likely isn't receiving a signal to turn on.