Here's the diagram I used, and it was accurate:
I was upgrading from a 27AM MR02, so I had to add a third wire to the steering pot, and I read that because the MR02 had one less servo gear I would need to switch the polarity of the steering motor, but that turned out to not be true. No biggie, just reversed it with the controller.
I considered eliminating the power switch, as I assume one could just jump those two pads and remove the switch. I kept the switch in place to not change too many variables at once, but I may take it out.
Going from memory, I think the wires attach to the pot in the same order (white in the middle)
One cool thing is being able to use the ICS port for transponder power instead of tapping battery posts, that way the transponder turns off with the power switch.