don't know how the 2020 models are designed, but most any Palazzo and similar THOR Motor Coaches have a 'Entertainment module' which allows you to switch each TV to it's own signal, for either Cable, Antenna, Sat, DVD, etc. The box itself is the 'booster' for the roof antenna, if it is pressed ON. Otherwise, unpress it for anything else.
A 'booster' is simply a 12v power signal to the roof antenna, whether it's on a 'wall plate' or on this 'entertainment' module.
The CABLE Coax input is generally found in the wet bay, either on one of the walls, or near the top.
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the Turners...
two Campers, two Electric cars
former diesel pusher traveler
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