Kill Switches?

[84LX89GT]

It's funny this topic came up because there has been an outbreak of car thefts (especially on modified and fast cars...several fox body stangs have been stolen) at all of my friend's apartment complexes, so i'm going to be doing the same thing. I'm thinking of hooking a relay up so that the control side of the relay is activated by either turning on the cruise control switch and the activated side runs into the starting relay circuit and won't allow the car to crank over. Or since i'm taking out my air conditioning, using the AC or AC max selection on the climate control switch to control a relay on the starting circuit. I'm not exactly sure where i want to tie in to kill the car, but the fuel pump circuit is also a good idea but i want a stock looking type system personally, plus my car is gutted so there's alot less hiding places.

Hey, for you fuel injected guys, a FREE kill switch is the intertia switch. leave you car running when you park it, smack the inertia switch with a flashlight or something blunt and wait a few seconds until the car dies and then lock it up. No thief would ever think of something as simple as that (or at least i hope they wouldn't). I may actually start doing that until i figure out what i want to do in terms of having a kill switch.