Been gone a while, bought a project truck 15 months ago, complete rebuild from cab back with two foot extension, flat bed and hoist with fifth wheel capability. Due to amputation of finger (darn leaf spring got me) and a diagnosis of bladder cancer with four surgeries never have got project finished.

All is done except wiring from cab back and I have got a cluster. Thought I had it figured out but am so far off don't even know where to begin as the wiring harness was more than a little cobbled and jury rigged when I purchased. It did work but no way did I plan on using it.

What I have in main harness form front appears to be two groups of wires one a heavier gauge than other. I assume this is to be used in connection with tow package.

The wires in this group are,Orange-Blue-Yellow-Brown/White-Black/Green and Green

Smaller gauge are green- black/purple-brown-orange/black-green-green/orange.

I also have the female half of a quick connect square in shape, heavy wire entering the back, white-blue-yellow-brown-green-red the other ed of these wires white-brown-yellow-green are connected to a four prong flat while the blue and red run wild and were cut off of something. This configuration has tow package signature.

Are the two bundles pig tailed together somewhere? Something has to be missing here other than the male connector to the female I already have.

Is there another block connection that breaks down wiring?

Looking to find coding for wire color and schematic. Actually looking for any help. All I know for sure is the main harness from cab prior to any junctions seems to be in tact.