I have a Cummins QSD 2.8 ES diesel with a 21 pin helm link plug on the engine that came with a vessel view 2.0 engine management with a 14 pin helm link wiring harness . I have to adapt the 21 pin plug on the engine to the 14 pin system. Is there an adapter or standard way to do this? So far I cannot get any info on this from an extensive internet search so any hints are greatly appreciated.