The one in the glove box is the one that's used to transfer import/export music.
Originally Posted by astrohip
Smed... I'm pretty sure this is your answer. I read somewhere the USB in the center console is the only one that can talk to the music/entertainment system. The one in the glove box is for updates & car-data-file uploads.
2011 BMW 535i Xdrive (3/2011 build), Space Grey/Black Dakota, premium 1&2.