NSS Wiring Help

If your car is an original console automatic, I'd use the factory wiring and connect it to your B&M shifter backup switch if it has one. The factory switch is just a simple 12V in, and the backup light bulb load out. You can also use the NSS switch instead if you like. As has been mentioned, the center pin is for the actual neutral safety, and the outer pins are the backup light section of the switch. It would mean getting the proper plug for that switch and doing a bit more wiring to connect it up. You pretty much will need to get that plug wired in anyway if you want to get the neutral safety part working, so not a bad choice either way.