Hmmmm.....aluminum bars, 3M double stick tape, sunblock fabric from HDepot, PVC pipe split- 1/2", dowel rod, magnets (HD 1" x 2" ceramic block magnets), JB Weld 2-part Epoxy, pop rivets.....
There's a flat boss behind your wheel wells that you can glue to magnets to. The actual mounting depends on using magnetic polarity to stick north and south poles together....doubling the strength of the magnets. If I hah known about the rare earth magnets before I made them, I would have used them instead.......Google rare earth magnets.....look around KJ Magnetics site......
I'll try to take a pic or two, but if you think about the info here, you might be able to deduce my methodology.
Pat Bauer, President
Entegra Coach Owners Association
2013 Aspire DEQ/Ford Edge
Pat & Medarda Bauer; Tess and Tighe (our fur kids)
2017 Entegra Anthem/FL/Allison/Grand Cherokee
Entegra Coach Owners Association, President
Sun City Center, FL