although you can do it this way you also need prior access to the car the same remote as the installed alarm and the keys to the car which most thieves wont have (unless it someone you know ripping you off)its pretty easy to clone any remote, spectrum analysers can do it and they are readily available for purchase to most people dirty little theiving bastards just wait till you push your alarm scan the airwaves with the spectrum analyser and change the oscillator in a unversal remote to the frequency the spectrum analyser has just picked up and voila bobs your uncle and your carless it sounds like hollywood bulls*** but its all true you can even google it the only way around this is with what they call rolling codes everytime you arm your alarm the code or frequency changes each time slightly making this method useless autowatch is a good alarm I have it and my car is still here still cost about what was quoted for this one but hey whats a lil bit of cash for peace of mind the 446 rli is the model number 5 star approved so good for insurance failing all this a pitbull will deter any bastard[