I am looking for wiring diagrams and any info I can get for a 1997 Kenworth W900 with steering wheel multiplexer, which is the system I am working on. I have contacted the original manufacturer as well as KW about the original VIP SM104 control module which is being updated to an SM105 unit. The SM104 was made by Intellitec prior to VIP taking over the company. Nobody knows anything about this OEM KW part number of K301-380 which is VIP part number SM104 or Intellitec part number 00-00338-100 31296. I would like to confirm pinouts before plugging in the new control unit. Thank you.