Constant beeping 1994 Mitsubishi RVR

I am currently stationed in Japan where I am unable to get an english car manual for my 94 RVR. Anyway my RVR is constanly beeping day and night and it is eating up my battery. I make sure all my doors are shut and nothing is on I like to think I know a few things about vehicles but this has got me stumped. Any information I could get on this would be greatly appreciated. Thanks in advance.

Stuck relay?

Disconnecting the power will at least stop the beeping and drain on the battery until a fix is found. Pull a fuse?

A short somewhere maybe.
Is this warning beeper tied into another circuit that MAY have a fault?