Been a while since I've been working on the BX but with one of the Golf D cars now gone and the other soon to depart it's important to get the BX diesel back into running condition. At any rate I found while cleaning out the basement a glass moonroof I had purchased a long time ago for the Mk2 and never installed it. It's an electric tilt / slide unit but when the roof panel is opened it slides back above the roof, not into it. It's a well made unit with a perimeter clamping ring and it conforms pretty well to the BX roof panel.
Also, it has an interior frame with a sunshade.
So the question is whether to install or not...here are some pics