I'd have to look at the car to know what wires are actually connected to the power. I went through with a DMM and tested all the wires for voltages, I suppose I could have done a continuity test on the speakers as well (did not think of that at the time).
I'm driving a 2001 ford focus SE 4 door sedan
I know the serpentine belt is slipping, especially when its raining/snowing it will squeel more. The radio will cut out when it starts to squeel and comes back once it stops. I know that is part of the issue, but I'm not sure why the radio cuts out when I come to a stop. I replaced the belt but I noticed the tensioner wasn't smooth when I was loosening it. I'm going to try to grease the tensioner or just replace it and go from there.
Is it possible the belt is slipping even if there is no noticeable squeel?