Originally Posted by Wolverine 1945
Know nothing about the Mercedes roof !!!
All I do know is our Sunseeker has a Radio antenna on the roof,,,
That I believe would work Great for the unit in the dash !!!
Coachmen Prism, and many other similar motor homes (MH's), are built on a Mercedes Sprinter base. All of them have taken the usual Sprinter antenna off the front roof, because of the configuration of the MH. The roof antenna is replaced by the Mickey Mouse inside antenna, which doesn't provide good reception.
Look at a non MH Sprinter (many ambulances, delivery vans, etc.), to see what I mean.
Now you know something about the Mercedes roof!!!