I'm picking up my X3 on Friday. I have a 4S and the snap-in adapter. I'll let you know how it works.
2012 X3 xdrive35i
Deep Sea Blue/Mojave/Fineline Sienna, Premium, SAP, DHP, Cold Weather I&II, Technology, Premium Audio, BMW Apps
Previous BMWs: 2000 528i, 2003 540i, 2007 335i Sedan, 2009 335i Sedan