When I built my TD, I wanted to be able to tailgate in mine.
I added a full car stereo in the galley. And you can connect a RCA to earphone jack that goes from the TV's audio RCA outputs to a TV. And my radio is pretty loud:

Then, I added a coax in and out outlet and a DirecTV portable dish.
How I have it setup is; I have one coax that goes from the dish in the TD to the
SAT IN on the receiver. Then, I use a RCA cable to go to the TV inside the camper. The
TV OUT on the receiver, goes back out to the other outlet, which goes to a external TV. Then I just hook up the audio out RCA jack to the radio, and BOOM! We are ready to party. Music and TV all together.
Example:

Coax outlets:
http://www.ebay.com/itm/RV-Teardrop-Tra ... 58a36333f6Then, the best part is, you can sleep in it if you get too drunk.