dafuq I just read? I told him the proper way to hook it up. Why would it not work that way? Two grounds? Yes two grounds are needed on the three spade switch with an internal LED. On ground is for the switch, the other ground for the relay. Can they share a ground? Sure why not, still two separate things grounding though. Wire it up EXACTLY as this diagram shows and be done with it already lol. WTH.