I bought one of these:
https://www.toyboxco...2-pr-61418.html
I have to pull it in tight and hold it with spring clips, but so far it works well. It won't last more than a couple of years I bet, but for now it's helping with keeping the sun off the camper.
Edited by Bwht4x4, 10 July 2015 - 07:11 AM.