450R Tether hook up

[Matt400ex_17]

Where do I hook up my 450R tether, it does not have a starter coil like my400ex, so how am I to go about hooking it up?

[BSTURDIVANT]

Trace the wires down from the key switch, cut the outer cover and tie into the black/white with one wire and the green(ground)
with the other.