Is there an alarm system that will kill the engine say after 2-3 blocks so thieves can't make a getaway with my vehicle? I have the crappy stock alarm system right now.

I heard....now bear with me here because I'm not exactly sure how I should explain this.....but someone told me that there is a way to rig up a switch to turn off the fuel pump while the vehicle is parked....is this possible, and if so would it be a really bad idea to do this to our VX?

I just got the Panther 241 20"s on with 285/50/20 tires and I fear someone will want those (not that the VX isn't valuable in itself)

Thanks for any help

~Kiersten

PS I have to figure how to add a pic to my profile here....then I can show everyone what the wheels look like!