On the 73 Sport, there is a seat belt switch attached to each seat belt roller, and another set of wires connecting to a switch under the seat itself. Since it's been a long time since I drove this car, and I'm in the middle of restoration, what happens if I leave these switches unplugged? The schematic looks like the wiring might feed the starter relay. Do I need to jumper the two wires together to get the car to start, or can I leave them unhooked?