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					Originally Posted by Tru2Chevy
					
				 Sounds like a bad ground or otherwise loose wire somewhere. Things like this usually can't be fixed without tracing through the wiring until you find the problem area....
 - Justin
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 ditto, its completely unrelated to the radio itself. just a wire that feeds to both the windows and the radio...
there is really no "problem" per se with your radio. sound quality just sucks when you put a aftermarket radio into a stock system. the stock system is designed strangely and aftermarket radios are designed to be run with other aftermarket stuff.