It's a relay behind that plastic piece above your right ear between your head and the rear window if you're sitting in the backseat on the passenger side. It controls your rear defroster and also the radio antenna. I'm sure there's got to be some destructions somewhere on our site that tells you how to get to it. My suggestion if it is not a fuse that is blown, would be after you replace the part, turn off your rear defroster as soon as it has done its job. If you leave the switch on supposedly it turns itself off at a predetermined point. Until it gets there though it is gonna be heating up with nothing to melt and that I think is what 's killing the relay sooner than it should. Good luck.
