Got the thumb drive from Tischer (
www.getbmwparts.com) and the FSC code from Sergej. Install was seamless.
But... so far, the 2013 North America map "upgrade" is WORSE than what I had with my 2010 maps. Several POIs (that were accurate with 2010 version) are either missing or have incorrect address with 2013 version. My office is actually listed under a neighboring town!! What the...?!?
I haven't taken any notable road trips to see how the interstate routing works, but frustration on the local level has made the $100 investment less than worth it so far...