Further Update Found Monaco plug not connected between the Engine and Allison. Located in the forward bay near the Allison module and transmission diagnostic port. Now working okay. UPDATE The Allison tech mentioned below used a port outside in the forward bay when I was not looking! It is a 12 pin, J1939 buss. Now waiting for Oregon to wake up so I can call and see if they can make a cable to hook up here. 2005 Monaco Knight Cummins ISC 330 with 6 Pin plug on the drivers side dash can Not see Allison 3000MH Data. Mark, here at Silver Leaf has me looking for another plug but I can not find one. The Voltage and Engine data seem to be working but No Transmission Data. Anyone with my unit have VMSpc working? Thank you