Current draw '87 5ktqa

[Ben Swann]

A few times after the avant has been sitting for some time, the battery
would go dead.  I narrowed the problem down to a current draw on fuse 16
which is for interior lights, etc. the current was about that of a small
bulb I think 1.6ma but I forget exactly.  After I pulled the fuse and
reinserted, the current draw dropped to .3ma (if I recall correctly).

Any ideas where this problem lies?  It seems like there is a relay stuck
closed somewhere which resets when I pull the fuse.

I did not find any devices, lights etc. powered, just the current draw,
which is apparently enough to drain the battery over time.

Ben