Excellent idea as Prevost has changed to the now standard "Multi-Plex" operating systems. What does this mean ? Gone are rows of relays. My '07 has this system and finding problems and solutions....Now is a laptop.
Marathon operating systems has introduced S-2 control boxes. I have 5 of them which control most of their coach operating systems. Former S-2 boxes have to be modified as the next generation now S-3 boxes.
It sort of hits you how fast operating systems are changing in our Prevost world along with the top convertors.