here is what I did. I had a new connector installed below the one from the factory, on the inside of the trailer a new cable gets hooked to the receiver and a HDMI cable ran up to the television. It goes like this. Tailgater on ground cable from tailgater to the new connector on outside of trailer, the cable that is connected to the connector on the inside of trailer to the receiver and then the HDMI cable to the television. See that way you can the Outside antenna also if you have a connection in the bedroom. Make sure if you use the connector that came with the trailer that the actual connector that you screw on to is Dish compatable. the insulation should be blue.
2011 jayco 33rlds, 2002 Ford excursion, v-10, 3:73 gears 4x4 mine. 2008 Suzuki sx-4, hers. Retired Air Force, now Retired.