D2 rear armrest with radio control buttons

[notorious]

Hello everyone,

Surfing ETKA I found rear arm rest with 4 integrated buttons: Next song, Previous song, Volume up, Volume down. Buttons are available when you open arm rest and are located near two cup holders.

From electrical point of view these buttons are connected to the MFSW "data bus" wire and work just like those 4 steering wheel buttons. You can also switch off these rear buttons with driver door switch that controls rear windows operation if you don't want children to play with them.

Question: Does anybody have this rear armrest? I wonder if this arm rest has ever been fitted to UK-supplied cars. If yes, I wonder if all MFSW-equipped cars came with this rear armrest or whether is was a separate option.

Thanks