A friend has a 2011 Keystone Cougar that he is living in full time. The RV is wired for two TV's. The living room has the booster/12vdc plug and next to that is another wall plate with two coax plug...
My AF has one of those plates with the two ant. connections. It's not labled or explained. So one day I had a screw driver in hand and thought I would see whats what. You know what was behind that plate? Nothing. No connection what so ever.