I took my dash apart while the unit was playing and jiggled the wires a bit. It went back to normal and I couldn't get it to distort again. I taped the connections with the rca plugs with electrical tape -it seems the rca plugs don't fit together very tightly. So far, so good. At least I know if it occurs again it is a wiring problem and not a software or hardware problem and I will continue to approach it as such. Thanks for the help and ideas.