Dont have a clue what it could be so hope you guys can help.

Ive got a 2003 WRX and had to replace the battery last week as something keeps draining it. Not sure if this is connected but i am also having problems with my stereo. Sometimes it works, sometimes it doesnt. It could work for a month then stop working for a few weeks then its fine again!!!

Dont ask any too technical questions as i am a girl!! lol
Any ideas?

 

I have noticed a similar problem with my 1999 STI Type-R, the battery has gone flat three times now, in 3 weeks i put it down to me starting the car up and not driving it, as its not insured yet.
Also im guessing the CAT 1 and Tracker may be draining the battery too.

 

Probably if you have a tracker on the car, it is this draining the battery. Happens on mine .

 

Take out the fuse for the radio and see if it still goes flat.