Installed one on ours. We mounted the dish about 12 to 16 inches from the front roof seam. After mounting the dish we drilled a hole through the fiberglass crown near the front seam about 3 inches in front of the termination point for the rubber roof. Use masking tape at point of pentration. this will help in not spidering the fiberglass when drilling. Use light presure on the drill as your drilling.
After pulling the wire through, tape the portion exposed on the roof in a couple of locations. Take some self leveling epdm caulk and apply a generous dallop next to the tape over the wire and let cure. After curing remove the tape. Same goes for point of pentrations, except we used non sag type of caulk
When we did ours I was able to come out inside of the front overhead cabinet.
Good luck
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