Your going to have to dig around with a multi meter. That switch will not be plug and play. Look at the handlebar kill switch, it is a close to ground switch. When its up its open and the sled runs, down its closed and grounds the mag and there goes your spark. That tether switch will need to be wired in parallel to the key and kill switch to work properly. Your best bet would be to splice it into the key part of the harness in the tank fairing to keep it nice and neat. You should have a black with yellow tracer, this the mag wire and will be open to ground with an ohm meter. The all black is the switch to chassis and should show continuity to the chassis ground. The tether switch will want to jump those 2, and when it closes it will shut it down. If you have electric start there will also be red and yellow with a red tracer in the harness, ignore them its for the electric start.