Well one way to check it is to look under the dash and find a green/white wire coming out from the compustar brain. You should find a fuse in line with that wire. Pull the fuse out from that wire and that will isolate any issues from the Compustar.
As for it going off all the time, is your alarm a pager alarm? If so and you have a little round "pager" pad on the windshield then just disconnect that piece from the brain. Those pieces always cause issues with the alarm going off. I have taken out about 10 of those stupid pager pads this year alone.
It will look similar to this with a blue flashing LED on the back side.
