Hi all. I have a 1997 mercury sable ls with auto climate control and mach stereo. I was looking for a good starting point to my current problem. I have a parasedic drain of about 1 amp coming from the radio. I disconnected the fuse to the radio and that verified my drain. The only problem now is that with that fuse pulled, the defroster is always on with the key on engine off and on. I am at a lost of where to start diagnosing my problem. Any help would be greatly appreciated. Thanks

Phil