i dont know if grounding the deck to the rca's is actually bad, but ive read this on multiple forums, and i'd rather ground through the chassis first to see if that helps. I have also read about something that wraps around the speaker wires to keep interference out.

and also i'd just rather have everything wired the right way, instead of having a wire twisted around the rcas and screwed to the back fo the cd player

thanks for the help