For what its worth department, re the shutoff on the alarms....I have it in two cars that are aftermarket and different brand names......They are both with the remote start and door locks etc. On the DeLorean you can deactivate it by flipping that special toggle switch on and off FOUR times.....On the other car (a Lincoln) it is deactivated by turning the ignition switch to ON, flip the switch to OFF, shut the ignition OFF and then that switch back ON...mine has a RED LED that becomes intermittent when it is activated but goes off when it is normal. Murray Vin: 05962 Lic: DMC-XII Washington State