If you remove the wall plate with the booster, you should be able to pull any slack cable out until you find splitters that go to the other TVs in the RV. The cable TV "in" probably runs to that point first. (The "air" antenna uses the same cables as the Cable TV, to distribute the signal, so it all has to be split from this point) You may have other splitters elsewhere but they will most likely be behind other cable wall plates as well. If yours is anything like mine, you probably have several connectors that are not tightened, so going over all of them gives you a chance to tighten them and prevent future problems.
2006 Dodge Ram Mega Cab SRW