MY factory headunit just shut off on me randomly a few months ago. I couldnt figure anything out about it, got another headunit and wired it up and hooked it up and it also fails to power on. Any ideas, is it wiring? All the fuses seemed good.

thanks

 

Check your wires with a meter. Also check your ground(s)
Good Luck.
JR

 

Which grounds should i be checking, and do you know which wires i should run the leads to?