Power draining,advice plz

[shellw]

Hi there,
For some reason the power has been draining out of my 88VN overnight.I have a 3month old battery in there,and changed the alternator 2 weeks ago.
I can drive the car all day,and it is fine,but if I leave it overnight with the positive terminal hooked up,the battery is just about,or is,dead the next morning.The onlyway to stop this is to unhook the terminal.
Any ideas on why this is happening,and what to do about it?
Thanks
Shell

[g00gz]

have a look at it when its dark and see if there is any lights on or anything, its usually sometghing really simple like the boot light or something like that staying on all the time....

[shellw]

Already tried that,was the first thing I thought of cos the kids are in and out of the car little shites lol
Thanks for the idea though

[mouce]

Get a multimeter, set it to measure current (amps), and one by one start pulling fuses out of the fuse panel in the drivers foot well. Measure the current flowing across each set of pins. Find out where the current drain is, once you know which circuit it is, it should be easier to find out what is causing the problem.