Looks like it has a bad connection somewhere in the main harness on the firewall. I turned the key on and started moving wires around, and the horn honked. It scared the piss out of me, I almost fell off the truck!
After I unhooked the horn, and a little more moving the harness around the injectors began to click... game on. I hooked my scanner up and now I can get into everything, but the fuking batteries are dead. All I have is a turd home battery charger as Snap-On hasn't delivered my new one yet...