I've installed a 1969 Amazon wheel-locking ignition switch in my 1967 project wagon. I've got the physical installation down, but I can't quite figure out the wiring.

The new switch is identical to those found on the -1972 140 cars, but the amazon wiring is quite different. I looked at a 1971 ignition wiring diagram and found that all the wires seemed to go to the fusebox. Maybe I'm mis-reading it. Wiring diagrams are not my strongest skill.

The Amazon's original armored coil was removed quite a while ago.

Here's what I've got:

Original ignition switch and wiring

Male screw terminals 54, 50, and 30 plus the Armored coil wire.
I've already read Ron Kwas' article on this

1969 Ignition switch

Male spade terminals 57a, 15, 50, 75, and two (2) 30.
(See Photo Below)


This switch had approx. 360 degrees of turn, so KP is hard to determine.

I think I can safely assume that 50 and 30 are the same as on the original switch, but I've no idea which of these new terminals correspond to the coil positive (Maybe it's 75...?) or what should be powered by the other terminals (57a and 15). I've seen 57a and 15 on various relays, but never 75 before.
I'm also unsure why there are two 30 terminals...

I'm guessing that some of the bundled wires from the amazon switch should be distributed among the new spades terminals, but I'm not sure.

Given enough time and experimentation, I think I can puzzle it all out, but if anyone know what should be attached where, it would save me a lot of time...

Thanks as always.