I have a 2016 416 and last year in TX I couldn't get the temp below 90. I didn't k ow about this forum and just googled stuff. The first thing I came across was solar screen and some suction cups designed for attaching screen. I had tried the reflextix but felt like I was living in a baked potato.
I went to Home Depot and bought some screen that blocks 90%uv cut 4ftx4ft sections and covered every window I had. My temp dropped about 8degrees.
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