Sorry I never saw this, yes I have fitted curtains behind the seats, though it's not a Kombi so not sure if it would be the same. They were Van X and come with a flexible rail which is screwed into the plastic trim of the headlining. My pop top is at the back so no issues for me, but I never have them shut if I'm camping anyway, I pull them when I'm touring to stop people being able to see in the back or if there's anyone in there. I'll take some pics tomorrow if it's any use?