I have the same need, and have no wiring diagram available, thru KitchenAid or any other place.
After studying the situation, I am going to connect all the red wires together, all the yellow wires together, the 2 black wires together, and the green wire from the on-off switch to the blue wire.
Note that I have not yet tried that, but it makes sense electrically.
macx, January 2011