I have a Pontiac Sunfire and i have one of the older eclipse single din flip out head units with concept audio 5 1/4 door speakers two in each door and 1 tweeter in each door for amps I have 1 concept 4 channel for the highs and 1 2 channel for the subs which are also concept 10's and I have two of them. well one day I was messing around with the system trying to tune the amps and I couldn't reach or see the gain or any of the tuning features so I started to move the amp and my power wire going into the sub amp touched the rca output and gave me a wierd noise I moved it as soon as I heard it now I have no sound I tried a new rca and still no sound but when I put a tone generator on the amp it sends signal to the doors and subs so do you think its the head unit sound processor or what pls. help/

u fried out output on the radio .. sounds liek it to me.

try using a high to low level converter, and see if it works, if it does, its the deck.

Is it possible to repair the output or is it so complex that you cant explain it