Our trailer had only a single external coax connection for cable and sat. I had to juggle some internal coax depending on which I wanted to use at the time. So I added a new external connection for the sat. Bought an external coax connector with a rubber boot for weather/dust protection when traveling. Drilled a hole in the outside wall near where I wanted the inside connection and mounted the new connector. Added a new coax wall plate inside in same area. Connected the two with a short coax cable. No more wire juggling. Was pretty easy on mine due to the location I wanted.