Looks like the truck is a fairly late model GMC. Does anyone know if those still use those archaic "key" thingies to start and stop the engine, or have GMC trucks changed over to the radio transmitter dongles and a button on the dashboard? If they use a button -- how do you shut off the engine in those vehicles? With a "key" (for those old enough to remember those), all you have to do is turn the key, and the engine miraculously stops engining.