Here it is, I have never really looked up under the dash before except to connect the speedo drive cable, but I have had the instrument cluster out before, I am surprised I didn't notice it.
I am not really sure if this is stock, it might be home made, I just don't know.
I have never seen anything like this before, Ken said he had it connected before in an email the other day, I thought he meant the heater box he sent with the truck, and I was kinda wondering how he had done that because the heater box core outlets didn't align with the holes in the firewall, now I know what he was talking about.
I might connect up that heater core tomorrow, it will make the hoses in the engine compartment look proper.