when I had my legacy, it was alarmed, and immobilised,I also did 2 other things one I had an extra siren put inside the car ( 110 db makes trying to steal stuff outta car a lot harder) I also had a switch panel under the stereo with 8 micro switches on it, none were labeled 4 immobilised the 2 circuits in the car to stop it from starting ( fuel and ignition) the other four did random things ( turbo timer,spotlights and 2 did nothing ) with out having the switches in the right order it would not start