I am currently doing my first Voron build, and well after having to re-make wires! (Cat ate the wires in half). I am now just about to fire up the voron for the first time, however I have the 2pc pcb hotend board and I have everything hooked up execpt, 5v and ground. The instructions just show a wire into oblivion, no location for it to hook too. Where do you hook up the 5v and the ground wires at in the electronics compartment?