i know its not much info but this is where i got the idea from -

http://integramod.tripod.com/

just click on interior mods and scroll all the way down . .by the green light by the hood popper he's got a link to kill switch info - i know the guy has one and obviously hes not going to go into much detail about it but try shooting him an email to find out where you can grab those switch timers - or just try a search on google. . i know its a good idea i just wish he had more info

i'd love to see those thieves jump in .. disable alarm . . go to start it and then hear absolutely nothing . .ahha i dont think they could figure it out in one night