Satellite Connection

I know I've asked questions about this before, but the confusion in my old brain keeps going.  Sorry if I'm beating this to death, but I'm one of these guys where things have to work right.  Maybe someone at the rally can ask a tech for proper connections to do this.

'18 DG 380FLF    -  The living and bedroom on this floorplan are reversed.

The antenna booster plate has 2 outputs - one for Satellite, other for cable.

In the outside panel, there are 2 inputs for SAT and Cable.

I pulled the walls inside the compartment to look at the connections.

Low and behold, the SAT connection does have a black cable coming off it going someplace unknown.  It goes to the wire bundle up into the floor.  But, there is no cable on the inside sat connector.

I know that earlier I was told by KZ to remove the inside cable from "A" and put the receiver cable there.  No go, unless I'm really doing something wrong, which I probably am.

Right now I'm just putting the SAT cable through the window to the receiver.  Although I have the window opening stuffed, flying critters still get in..

I know that all MY cables are good.

So if someone can ask a Tech there can you let me know.  I have the wiring diagram from the manual, but honestly I doesn't really tell me much.

Thanks,
Al