Hey I have a 2007 cobalt SS and there is no power going to the radio. The battery was disconnected and now the radio has no power and door chimes and turn signal noise doesn’t work either. It is an aftermarket pioneer stereo. I checked all the fuses and they were good. I saw online that it could be an anti theft thing, but my security light isn’t on, although it could still be an anti theft thing, idk. Any ideas?

 

Start tracing wires for a cut or disconnected wire. Also make sure you have a good ground.

I'm assuming you went through both fuse panels?

 

Yeah went through both and all were good. I’ll look for cut wires