Without being funny, I'm not sure that the £9.79 eBay job is going to be even up to the standard of the Bose offering! That said, for less than a tenner, it might just let you keep using your old dock.
The zepp is still streets ahead tho.
57 Sapphire Black E91 330d M-Sport
Privacy Glass // Leather // Heated Seats // Bluetooth // Blacklines // BMWP Gloss Black Grille // Alpine HiFi // LCI Headlights