New 2021 M335, has the winegard dome up top, switch inside.... sticker says it’s pre wired for it, but install videos show the dome as the whole unit I have yet to see anyone insert the guts and cover it back up. So if I have the dome do I already have the system? When I turn the switch on nothing shows up on the wifi to connect to for setup. So I either have an empty dome or a defective unit?