2000 379 Peterbilt, getting the cruise working again?

I have a 2000 379 with a 6nz. The cruise is not hooked up. I guess somebody before me done something to it and took it out or something. Anyway I just want to get it hooked up and what I really need is somebody with a late 90s or early 2000s Pete with a 6nz to pull back the dash panel with the switches and follow the cruise control wires to the tag that says “cruise control”. There should be another tag that has a 16-xxxxx part number. I need that part number a I can get the right ads on harness and I add the two switches to get mine working. The tag on mine with the part number is missing and just says cruise control. This would be a huge help for anybody willing!!