I used the Wink 5 panel mirrors in a number of cars from the '60's, '70's and '80's including a 1602, Bavaria, and a 528i . I was always able to mount them so the sun visors were still mostly functional. To keep them from vibrating while driving required that the upper corners of the mirror needed to be firmly up against the windshield glass cushioned by faucet washers. I know, a little hillbilly, but you do what you need to do to keep the mirror from vibrating.