You already have a built in kill switch in the trunk for the fuel pump. Its the impact ciruit breaker that is suppossed to pop if you get into an accident. Pull that and no start ever. Most ppl who have these cars don't know about that much less some piece of **** trying to steal one.
2000 Mustang GT Steeda build #48. Bolt ons, suspension, Novi 2000.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.