I'm looking for a bit of help with my '02 Mazda Protege.

This past week, my alarm has been going off non-stop and it was just at the mechanics on Friday! They tried to look at it, but nothing worked. I spoke with a dealership and they mentioned locking and unlocking the driver's side door (I don't have a remote door lock and hence - no alarm disarming device!). However, that didn't work. He also mentioned pushing the valet/override button under the dash and locking the driver's side door at the same time. Problem with this is that I can't locate it! Any ideas as to what I'm looking for under there?? Or advice for disconnecting this nuisance??

Any ideas/information/sympathy is appreciated!!