From the brochure:
"Model Year2011 X5 xDrive35 d content shown in brochure; Model Year 2012 will be available October 2012 ."
Its just not an updated pdf...no big deal. The 10 speaker system is standard on all MY12 x5's. Mine has it. Its decent, but lacks the EQ settings of the Premium Hi-Fi system. Much better than the base from the MY11's
03 X5 4.4