When I start my 02'WRX cold it has been making a squealing noise lately. It will start squealing after a few seconds and then if I push the clutch in a few times it will usually stop. Then I don't seem to have any problems with it until the next morning when I fire it up again. I was wondering if there is a way to tell which belt is loose and if this is something that I can replace/take care of myself. I am technically inclined and have access to all sorts of tools.