If you want to run the overheat sensor (and your head has mounting for it) then the pink and black wires do get hooked up. If not then yes (dont throw it away but put it somewhere) silicone the original grommet shut and tape the wires up in the box. The white wire from the enhancer and the white/red in the box get hooked up together but you need to use a jump wire or gender changer to connect the 2.