it was the wires on the controller which unplug at both ends. inrteradesting.Have the cab control for the MVP - was brand new in December 2006.
Started having sporadic problems with it yesterday in that I would push the buttons and the plow wouldn't do anything; moved the truck a little bit, and it would seem to work again for a few seconds.
Finally died - the on/off switch was blinking.
Called the dealer - he knew what it was right away. He said that Western has problems with the controller and is working on a fix. He said that the wires going into the controller are so small and fragile that they tend to separate/break very easily.
Dealer gave me a new controller and it works fine. He said that Western is sending him new cords and would let me know when they came in (because the new controller he gave me could end up having the same problem).
So...just letting anyone out there know that the cab control may die on you and, if it does, Western will replace it.