You said emergency, so I'll give my .02
The power cable of the new module can just be tapped to the factory tan power cable (per Vegas' instruction).
But for the control wires, you have to CUT-IN-HALF the factory orange and brown wire. So you'll have orange&brown sticking from factory switch, and another sticking from factory motor.
The new module will be bridged in the middle. Follow Vegas' instruction on which colors connect to switch end, and which colors connect to motor end.
Ground wire wrapped good and tight on screw should work fine. I used one of those hook terminal ends.
Vegas: Thanks again on the great mod info!! 