I was driving home today and saw a small blue flash under where my gauges are. The next thing I know, my head unit shuts off and will not turn back on. It will still eject and insert cds and it will light up when it does those two things. Where should I start looking? And what caused this?

 

fuse box

 

SO I should replace the fuse is what you are saying?

 

Are u running an amp if so that could of blown also yes replace the fuses that could also could of gone. Also another thing is your wires could of just shorted or unplugged. Were you blasting the radio or cd player all the way up?

 

No, I am not running an amp, I think it might be the standard 52x4 amp that is in the head unit, and no, I was not blasting it at all...

 

some head units have fuses built in the back of them. pull head unit out n c if one is blown. iether that or head unit shorted out

 

You got yourself a s**+¥ head unit. Never heard anything like that happen.

 

lik ur signature ^^^ lol mines better and steros are gay lol jkkkk

 

Check your voltage ( if alternator is bad cause radio problems)

 

If it was his alternator, everything would dim and cut out, not just the head unit. Also the car wouldn't start/go so that isn't the problem.

 

does he notice any other problems? if the alternator is weak and can't run everything the head unit will shut off until it has the necessary voltage.

Check the cigarrette lighter fuse and the fuse under the hood.

 

The blue flash you saw was probably a B+ wire (going to the radio) shorting to ground and therefore popping a fuse. How did you install your radio? Hopefully you soldered and shrink tubed everything. Before you start putting fuses in, take out the radio and inspect for any bare or poorly spliced wires and repair with solder and shrink tube where necessary.