I just dropped a brand new wiring harness into my 1978 CJ-7 and the damn thing won't crank.
I have power to the interior and lights, but nothing to the silinoid. Plus I can't find a wiring diagram that explains how the neutral safety switch hooks up. There are three wires that goto it, power, and 2 back-up light wires.

I have power to the coil side of the silinoid, but it just won't click. The silinoid is brand new and good, and same with the starter. I'm very stumped and would be very greatful for any help.

Neutral safty switch on a 78, is it an auto??? My 79 doesn't have any.

Yes, it's on auto.
The neurtal safety is located on the bottom end of the steering column. The switch is not located on the transmission itself.