well the easiest way i found is to rplace the bolt that hold in your ignition switch. to the thief all he has to do is pop off your steering column cover and unscrew 2 phillip screws and your car is gone. replace those 2 screws with either allen/hex bolts or if you can find those screws that only go in but not out those would be good to use. and of course get an alarm with the backup battery.