Inspired by Instagrammer @wheninvan, a Sprinter DIYer who appears to have used Reflectix exclusively for window coverings (not just for inserts, and his looked surprisingly good), I simply did what I had originally done for our windshield cover - I inserted Velcro strips behind key finishing screws in the interior, and used them to secure the rolled up Reflectix covers, as follows.
|Here is one such screw securing a trim piece adjacent to the port side rear door.|
|Use an awl or similar tool to poke a hole in the Velcro piece.|
|Unscrew, insert Velcro, replace screw and its plastic finishing cap.|
|I think it looks cool! Almost like decor. It certainly matches the style of the Interstate. Initially I thought that this might end up looking too cluttered, but I like it.|
|I put an adhesive-backed patch of Velcro on the strips that cinched the Reflectix into a roll...|
|...and stuck them above the head-knocker that lines the top of the sliding door. You can see the original large windshield reflector by Heatshield on the ceiling at photo left. At that location, there were convenient screws in the joinery between the cab liner and the aluminum inner finish.|
|Of course, I would not blame you if you did not recognize the "corresponding face" line. It certainly was not the most famous line to originate with a Meg Ryan movie.|