My car is an 00' SS vert, recently my Monsoon radio/cd has been going in and out(just sound, power stays on and I can still change tracks/stations but have no sound), usually after I hit a bump, sometimes it will stay on for 3 days at a time, other times it wont come on to save my life, what could be causing this? Loose wires? If so, do you know which ones, thanks