It only disables the starter by interuppting the wire where it is cut. THat is usualy at the ingintion harness so a thief just need yank out the starter wire (car side) connection that is redirected to the alarm (standard colors so they know what wire it is now plus it was the only one actualy cut) and hold it and ignition to constant power then once the car starts, drop the start wire form power and twist ingition to it only........BANG!! You got a brand new protege 
The factory alarm for the protege is just a code alarm which is an aftermarket manufacturer. It has nothing to do with the car really like most factory alarms. It just taps a few wires and cuts and redirects the starter wire.

The factory alarm for the protege is just a code alarm which is an aftermarket manufacturer. It has nothing to do with the car really like most factory alarms. It just taps a few wires and cuts and redirects the starter wire.