The only thing you "disconnect" is the wiring to the smoke fan motor, those only go to the Super-Chuffer on the pins I indicated.
For the other four wires specified above, power and ground are obvious, that leaves two wires.
The chuff is just tapped into the existing wire from the chuff switch to the locomotive motherboard, you do not remove any wires and the original connection remains intact.
Finally, the smoke heater sense wire going to pin-9 is just connected to the hot side of the smoke unit wiring, nothing is removed.
