I asked a similar question last year and never got a reply. We have a 2014 Fleetwood Bounder 35K.

I installed our antenna on the drivers side with a flush mount bracket from Right Channel Radios. After

taking some measurements I drilled a pilot hole through the sidewall, from inside one of our storage

compartments so it is hidden inside. It looks great and there have been no leaking issues. Be very

careful where you start to drill if you decide to the frame is VERY thick aluminum. I got lucky and was

able to miss the framing with one hole but not the second.  If your interested I can take some pic's of the

inside and outside installation. Our is covered now as we're in Massachusetts.

             Don Whelihan

I will take some pics tomorrow of the inside install, my cover is still on but I'll see if I

can't get a shot from under the cover for you.

Sorry I took so long to respond.

Don