When i was driving my car the other day i was hearing a popping noise coming from the speakers and i never heard this before. It was the warmest day i have driven my car because i just got it at the end of February 2003 and i was thinking maybe the cooling fans cycling was making the noise. I have no fan fail relay, fanzilla or jumpers in its place could this be a problem or is it something else making my speakers pop with the radio on? I do know that i have the wire wrap shield covering my coil wire so i dont think that could interfere with my stereo. Mark 6683