Several times over the last couple years my battery is completely dead after sitting overnight. Had alternator replaced, had traveled to a small town and as soon as I got there the battery was dead. Fine for a few months. Then this problem started. Replaced alt again and then had old one checked at pep boys, they said it was fine. At least I saved it, now have a spare. Still had dead bat problem occasionally after that.Overnight charging with my 2 amp charger charges it fine. Local mechanic 'fixed' it for $50, no problem for a year, said something about a wiring harness problem common to these cars, sounds a little fishy to me. Now dead again. The battery was new before all this started, now its 2 years old, good clean connections,no other elec problems, nothing left on, Have worked on cars a lot in my 50 years, I think its draining thru something I've heard about, body or static drain module. What does it look like? A month ago I left it parked for 3 weeks, started right up.Now this. Help