I have a Dodge Ram 2500 quad cab 4 wheel Drive it is an 03 model on a mudding Excursion I caught the wiring harness on fire in the engine compartment wiring harness needs to be replaced I am have I'm having issues finding one it is a 5.7 Hemi gas Chrysler discontinued making them and they say I can only use that year wiring harness for that truck I need help from anyone in the Dodge community I'm desperate I love my truck and it has been down all summer because of this issue

 

Junkyard. I think that is going to be the least expensive option.