If I had to guess it'd be mounted somewhere just behind the cabover portion of the roof, but I never paid much mind to them. We never did the dome. Too many times we camp with shade trees where it wouldn't work. I like my shade more than TV in the summer. 9 out of 10 campsites we choose are like this. We have always had a Winegard set up, the small manual one like a suit case, and have run as much as 75' of cable to find a good clearing. $160 or so and I got mine set up almost as fast as the auto one. Watched plenty of people with the auto dish moving motorhome around trying to get a good clear spot for it. I'm sure the dome is nice if you always set up in a clear spot. As for the in motion dome, we didn't have TVs in vehicles growing up, and have stuck to that with my kids. I know some people love them, but, just doesn't work for us.
John and Rebecca Dickson
Emma-7 / Little John-5 / Iva-1
Full Timing Again, Rev B
2013 Ford F-350 Lariat CC LB PSD
2015 SOB TT - With OC's Awning Poles (#8)
At least in Heaven, RVs will be perfect, and I won't have to keep fixing them.