You only need RCA cables if you want to watch a video outside from a DVD in the dash. otherwise you just need a coax cable to push the cable into the TV outside. Both the coax connection and power outlet are either in the outside of the camper or in the nearest storage bin. I watched a lot of football this weekend on my outside tv.
2015 Jayco Greyhawk 31FS-"Scamper"
2015 Subaru Forester 2.5i Prem. 6 Spd
Blue Ox Aventa LX Tow Bar
2014 Jayco Jay Feather X23B-"Glampy"(Sold)
DW, DS, DDx2, and Bandit & Fletcher