2002 Acura RSX Sub, Gone Bad

     I was helping a freiend install a subwoofer in his RSX by using a LOC.  With the rear speakers still out, we tested the car and everything worked great, the sub and door speakers.  When I screwed the rear speakers back in, I accidently drove a screw holding the speaker in into the 8 gauge power wire, which was fused at 50 amps.  When we started the car to do the final test, nothing would work, door speakers, or sub, so I took the speakers out and discovered the power wire issue.  The power wire fuse and radio fuse are still good.  Now no speakers will work, sub included.  However, the head unit remains on and does not give an error code of any kind, but no sound will come out of the speakers.  I pulled the radio fuse for 5 minutes to give it a chance to reset, but it didn't help.  The sub and LOC are unhooked, putting the car back to stock.  What could be wrong???  I need help as this is a friend's car and I want to get my mistake fixed for him.  Sorry for the long post and thanks in advance for your help. 

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Basically...you could have seriously messed up his cd player...well the outputs of it..it still may turn on but its screwded.

Could be wrong though.

Is it a base model or typeS? If it is a type S, there is a factory amp under the passenger's seat which may also be the problem.

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