Thanks for advice and pictures, Had a look all around rear luggage areas, no sign of this connector anywhere, Parag has got back as well, he now says that the car is not wired for telephone (strange considering microphone cables are in place).

I have now got in contact with Crevier BMW, to see if a wiring loom is available. Does anyone know what part number I am after?

This is seriously starting to mess with my swede now.