[MEvang]

Well, I just looked at a 95 Camry, the problem, they will come out to the car about once a week to find the battery dead. The battery is new and checks good, the alternator check good 14.5V output. No abnormal parasitic discharge seen on an amp meter (13 ma drain)
He did mention he hear a really clicking once when it would not start. But no energized relay were found when I looked at it. Relays click when the power supply voltage drops, so this leads me to believe that a relay is being intermediately powered on after the key is off. I've asked him to try and pin point the relay that is clicking the next time the problem appears.
I know this doesn't help you much, but my guy did take his car to the dealer and they charged him 90 bucks and found nothing. I haven't found the problem either, but I did get the vital clue of the clicking relay. Now which one is it?
In you case I would find the Defrost relay, (in the under hood panel) and pull it. See if your problem quits.
Mike