The problem is, I haven't found any place to buy generic or universal fit vent shades ... you know, straight ones in sizes by inches. They only seem to come by make and model of car or truck and then two of the four in a set are curved to fit the front door windows on a specific model. I'd like to buy 3 or 4 straight ones about 18" long.
Probably just wishful thinking but has anyone else tried this? Any idea where they might be had?