1995 chevy lumina

I have a 95 lumina with a 3100 motor,I recently started having problems with my battery being drained after sitting over night.i noticed that while the car was off and the keys in the house my fuel pump would kick on along with my door chime,this leads me to believe there is a short some where but not sure where or how this could happen beings that the wiring was not messed with.i would greatly appreciate any help or advice on how to locate the problem that is killing my battery

[QUOTE=dcornish;9673]I have a 95 lumina with a 3100 motor,I recently started having problems with my battery being drained after sitting over night.i noticed that while the car was off and the keys in the house my fuel pump would kick on along with my door chime,this leads me to believe there is a short some where but not sure where or how this could happen beings that the wiring was not messed with.i would greatly appreciate any help or advice on how to locate the problem that is killing my battery[/QUOTE]

I think you will need to replace your battery