richardkaren - I don't have a CB installed in my unit, sometimes wish I had. Cell phones are wonderful if you know who to call while away from home on the road. If I recall, the metal of the vehicle adds to the range of the antenna. Might try posting in the technical forum and then bring the answers back to this topic for specific ideas on how to implement their suggestions.
burlmart - Fortunately, our TV sits quietly in it's little cubby hole. Nothing rattles (yet) in the upper bunk area. I might consider purchasing a 15" screen laptop, connecting a tuner for watching TV, purchasing a WiMax card for internet access. Now you have a small TV to put on the dinette or place in the cubby hole. You can also place it in the cab area and use it for accessing road maps on the internet. My wife has a laptop she uses for work and it has spoiled us when on a trip. There are many "hot spots" to check email etc. WiMax cards allow you to access the internet every place you can get to a cellular tower. A small inverter can keep the laptop battery at full charge.