do some research on a kill switch - rumor has it that professional thiefs can kill any alarm on the market in seconds - really if they know how they work its easy to snip the right wire - in some testing they had some prof. car thiefs try to jack a whole line of cars - the only ones left were the ones with custom kill switches - where you re-wire the ignition switch to some secret button - the car wont start till you reconnect the ignition circuit - i even read some cool ideas where people put magnetic switches on timers in a door panel or body panel - they would then carry a magnet on their keychain - walk past the car - swipe it past the switch and then you have 30 secs to start it up otherwise the switch will close again - supposedly someone would have to spend HOURS and hours and hours on it and may never really find where it is hidden. only downside is they could tow it or just gut the interior. .but still thats a huge pain in the ass .. just my .02 cents