2002 Itasca Sunrise Electrical problems

Dt*: the contact stated while driving 60 mph the motor home stalled suddenly without warning. The motor home could not be towed due to the size. After contacting workhorse, the contact was told to agitate the wires on the steering column. The vehicle started long enough to get the contact to the camp grounds. While leaving, the vehicle stalled again. The vehicle was then towed to the nearest dealership. Previously the motor home was difficult to start but, progressively worsened to the point were it was shutting down on the highway. There have been a total of 25 ignition fuses replaced but the problem persisted.