Thanks King. I was told by BMW Canada and my dealer that my X5 (purchased with 4,000 miles in the US) has the wiring required to have the USB/AUX IN dual plug in the armrest.

So I could change the part in the armrest to the USB/AUX dual plug - but apparently no dealer can program it if only the single AUX IN plug came with the vehicle when it was manufactured. Apparently the programming is only available on the production line.

I would like to try to keep the CD Changer and not have to install the retrofit kit (which can be done).

Any insight into possible dealer programming for the swap of the AUX IN plug to the USB/AUX IN dual plug in the armrest?

Thanks in advance.