ATF: Landmark - Outside TV Cable Source

I am trying to trace the outside TV cable source. The diagrams in the manuals section of this site show it should come from the Living Room Entertainment Center cabinet. I have traced every wire except the cable to the outside television. The outside TV black cable runs outside and into the underside of the coach. The source jack (according to the wiring diagram) in the living room cabinet is a gray cable and runs outside and into the underside of the coach. Is there a splitter located underneath the coach? I cannot find where these 2 cables go, even though they are supposed to be run to each other.

Every other cable is accurate according to the diagram. Any help would be appreciated as my cable is not working on the outside television.

Just a quick thought here. Is your TV configured to receive the signal from the proper source? OTA, cable, sat?

Peace
Dave

What Dave said plus be sure antenna booster is off.