I’ve sold my X358 and have a spare Rear Seat Entertainment handbook, part # JJM 10 46 21 801, I don’t know if it’s applicable to the X350, you’ll have to do your own research. If anyone needs it just pm me your snail mail address.
P.S. When I say anyone, it excludes you Mr. Crespin. I’ve given you far too much over the years:-)