Standard J bass wiring. Three 250 k pots, mono jack. Passive. Ran just the hots to one leg of the input jack, and it is working fine. Wondering if the ground leg of the input jack needs to be connected? And if so, where? To the bridge ground wire, or to the back of one of the pots. Need to know if I go without it, I won't risk shocking the Munchausen out of myself!