"Hidden" electrical drainage problem

[gary96svx]

HI FOLKES--
I have been plagued by a long-time problem on my "96 SVX that no shops seem to be able to solve:

• Sometimes, when I go to start my car in the morning the battery will be dead or almost dead. I then have to use my battery charger to get it started. The car seems to be OK for a while after this.

• Sometimes this problem also happens after I have just been using the car (and have turned it off briefly) and then it won't start it again.

The battery, alternator and starter are all fine.

MY GUESS: I think there is a hidden short-circuit somewhere in the car’s electrical system. But the Subaru dealer's shop says they cannot detect any "short-to-ground" problems.

What can I do to get this problem diagnosed?? Any ideas are appreciated.

gary96SVX