06-07 Cummins harness

[chipmnk]

I am doing a swap into an 05 F250. I have the engine harness that goes to all the sensors, and now I need the other harness that plugs into the other plug(c2?) on the ecm. It goes from the ecm to the firewall of the truck and I'm not sure where else. Any info on where I can find this harness would be appreciated. Pm's or 614.206.1662

Thanks, Mike