I'm kinda in the same boat, so to speak. I just picked up a 22xlr TT. The dealer had to install and run wires for a brake controller. Do to some poor placement of a relay, my truck caught fire as soon as I got my rig home. I was able to get the fire out before it did any damage. But the wiring in my truck was cooked. They ended up forking out $2500 to fix it. After a month, I was finally able to use the camper. Took it somewhere local just to have a shake down run. I had more fun than I expected. I'm really happy with it.
I will agree. The radio it came with isn't the greatest. I'm tempted to replace it with something else. Its a Boss single din. It has a DVD rom, and it has video out through a component cable (yellow) but no sound on the red and white. It only plays through the speakers in the camper. ...The wife, watches TV to fall asleep. So it makes it problematic when the TV shuts off, but the DVD keeps playing. I think in the meantime I'm just going to get a small DVD playing to hook up to the TV. Prolly should have spent the extra $20 and got a TV with a built-in DVD player. Mah, you live and you learn.
I also just had the idea of bringing my laptop and a HDMI cable. That would do the trick.