i have a similiar problem but ts the 2 passenger speakers back and front i have the whole headunit out right now and im looking at radio/stereo wiring diagrams i think i have a short somewhere because the speaker will play for long periods of time then just go out for a little while and then it will come back on this doesnt happen with any particular circumstance it just does it whenever moving or sitting still anysuggerstions while im in there b/c im fed up