Thanks, I have the cradle, and USB has stopped working in both the arm rest and the glove box. No other symptoms so i have bought a new hub, just can't find the old one :-( My car was from the last 3 months of e70 production and thinking they might have done something odd towards the end.

I am thinking that the glove box (1), arm rest (2) and the cradle (3) are the USB ports, hence the hub. But i could be wrong...