Rear Speaker Box Connector
 

I am looking for the connector pictured here. It is the one used to connect up the rear speakers to the car. In particular I am looking for the fixed portion. The removable portion has a BMW part number. The same one for the cell phone connection under the centre console. Online searches have yielded nothing.

It looks like this is the same as the connector used in the centre console for the cell connection........surely it is available somewhere. Porsche does not stock them.