So I haven't had heat in my truck. Finally got around to trying to fix it. I'm completely missing the cable that goes to the vent selection to wherever it goes on the actual heater box. Does anyone know where I can get this cable and where it connects to on the truck?

 

Junkyard, LMC Truck, Dodge dealer?

Goes from the control head, to the top of the heater box.... Think ya gotta pull the dash to replace it.

 

I actually just found it. Thought it was an HVAC vacuum junction box that the guy just left floating around. Turns out that's what controls it. But all the insides are gone.