I am looking for some advice regarding the installation of the Starlink system. If I understand correctly, to use the mobile roaming features I would need to have either the mini hardware or the flat high performance system. Is this correct? Does the dish need to be mounted on the roof somehow if it is the mini. Someone said that if the roof is fiberglass the unit can be inside. I can't get clear directions from the Starlink website and can't find any number to call. Plese help if you have experience or know the answers. It is greatly appreciated.