Battery dies while sitting..

[clutch1]

Recently my Park Ave found itself with a bit of a problem. The battery dies if I let it sit a day or two.

Found the power leak.. about .5amps going to the underdash fuse block. Upon ivestigating, the "CSTR/SBM" fuse was pulling the power. The manual describes the fuse as "HVAC Programmer, IPC (cluster), SBM (275 to LCM) (1135 to BTSI SL).

What the hell does any of that mean?? I assumed pulling it would leave the cluster inoperational... but the lights still come on it.

As for the rest of that stuff... I don't have any idea what it does!

What should I look into to fix that stuff? It'd be really nice if I had a wiring diagram of the car.. but I don't go back to school till Monday to look one up. Grrrr.

Suggestions?

Also, this is the part of the car I haven't messed with, electrically, so I doubt it's any of my add-ons causing issue.