Question: which fuse in the fuse box on driver side is for the headunit?? It might have been blown when I tried charging the battery since my car has been on jackstands for like 5 months now.

What are other possible causes for HU not auto powering/not on??

It was working perfect last week when i powered on the car, when the car wont crank. I decided to use one of those electric charger, now the HU won't start.. WTF?

 

Does the radio say "code" when you turn it on or is there just no display?

 

fuses 9 & 22 both need to be good for the headunit to work