bypass

I have a 2000 monte carlo ss and my speakers are getting no sound and every once in a while fade in and out. I have a aftermarket kenwood deck, Polk audio front speakers and stock rear speakers. Haven't had a problem before now. I have come to the conclusion that my factory amp is going bad...

I would like to add an auxiliary input to my 2004 Chevy Cavalier factory radio. It is an AM/FM/CD (single) unit. I know that there are converter boxes out there but here is what I would like to do. Can I make a Y cable out of all of my speaker leads, tie together the +'s and -'s into two leads...