Hi im a new here i just picked up my 2002 wrx a few days ago and im not sure if my factory alarm is broken or if im doing somthing wrong or what but what i thought u were just supposed to press the large button on the remote once and the alarm would be set. I thought the alarm would go off if i tried to pull the handle up or if i shook the car but it doesnt. I got the alarm to go off once by pushing the larger button once and then opening the trunk with the key and it set the alarm off. I didnt try that with the doors. But i figured i would ask on here first and see if there is somthing wrong with the alarm or if its normal.