I have a 2001 S6 and owing to an ever expanding family would like to retro fit a rear facing bench seat in the boot (well any kind of rear facing extra seat would be a help even a single one). Audi can't help - "factory option only mate". I've tried a couple of places.

Apparently A6s from c1999-2004 had this option. However, web browsing indicates that maybe only the 2.8 A6 has the right brackets for the seat and seatbelts and so may not be easy (or even possible) on the 4.2 S6...

I'd be very grateful if someone could let me know one know who might be able to help/do this moderation?

Thanks

Julian