After almost a year, my errant machinist finally found time to make up some parts for these mag mount sun roof spotters, designed for use on steel sunroofs - so not for you if you run a Landy.  :lolno:  See the video: https://www.youtube.com/watch?v=i3acKW762XU&feature=youtu.be Look for some of my older 'spotter lamping' videos to see the results of differently mounted but otherwise similar rigs. Here is an aspect that few might have considered with such a device: https://www.