Here's how i am doing mine. First figure out where you are going to locate the switch, i'm putting mine on the side of the pod if there's room, if not, then i'll put it somewhere next to my hot grips switch where the key switch is located. Pull the headlight out and disconnect the connector, trace the ground wire and disconnect it from the ground. Add on a new ground wire long enough to reach the switch and connect it. Take the original ground wire and connect it to the other side of the switch if it's long enough, if not, splice or solder a piece of wire then connect it to the switch. If you have to splice or solder more wire, make sure you seal it with a good water proof sealant and wrap it with tape. Plug the headlight connector back onto the light and turn it on to make sure it works. If it does, button everything up and your done.