yes... but you need a switch on that too...
your basically making a T with the wires... when the switch is off, it will act as normal, when its on, it will be in high boost mode...
so connect your wire to the stripped wire, run your wire into the cabin to a switch somewhere, mount the switch, then run the wire off the switch onto anywhere on the chassis...
get it?
and make sure to clean up everything, dont leave any exposed wire anywhere...