So thats ^ the polycarbonate with the tie-down material fabric with a fender washer on each side of the fastener. I had the awning shop put on the female end of the pop snaps.
If you look closely you can see the male end of the pop snaps, they are the same kind as on boat covers. The male ends were attached to the door via screw that is inside the pop snap and the holes were pre-drilled
This was done for both doors. the straps go below the poly carbonate(PC) and cradle it like a hammock. the straps then snap securly to the door. You will need to find a piece of foam to hold the PC to the weather stripping at the bottom however because the straps tend to pull it in twoards the inside of the door.
I can email much higher quality pictures if needed. I will ovbiously be more than willing to take more photos if requested.
Hope this helps and like i said above - it saved me a ton of money