We need two toggle switches or a three-position switch with a return spring of the third. Problem with toggle switches is that they are too easy to accidentally hit. You can switch at the top, but if the electrical system is. properly configured with relay can use Radio Shack. A buggy was already built decades ago and used surplus aircraft with the toggle switch guards. It was. used surplus. aircraft with. the toggle. switch guards and a three position switch with the return spring. of the. third position switch. It started two steps that are around the car.”]
Source: http://duc-dehydrat-l.blogspot.com/2009/12/keyless-car-ignition-does-anyone-know.html