Ah, that explains it -- my F150 pickup truck is 14 years old, the only technology it has is an RFID chip in the key (which I assume is read by a sensor in the l

Ah, that explains it -- my F150 pickup truck is 14 years old, the only technology it has is an RFID chip in the key (which I assume is read by a sensor in the location of the ignition switch, fed to the engine computer, but otherwise not requiring any other re-design of the key switch).