I go into downtown St. Louis every now and then and I was thinking of installing a kill switch. A lot of vehicles are stolen down there. My question is would installing a kill switch be pointless? Since my truck has the circle plus transponder key, does it make the vehicle impossible to start for a thief? I was thinking about installing a kill switch for the fuel or ignition and putting the switch somewhere in the truck that a thief would take some time to find. Thanks.