I don't own one, but after looking at the pics at Grand Design's website, I would bet that they wired one of those glass cabinets with the satellite/cable coax preps. Just a guess on my part.
My FW is wired that way, and I have my Dish receiver sitting in a glass-faced cabinet above the TV.
Good luck, and from what I looked at, it looks like a sweet FW.
Lanny, Retired GySgt USMC
2022 Venture Sport Trek 272VRK
2021 GMC Sierra SLE