I see a few of you got used Cars and programmed your phone. This is for my wife's 2005 E60 but I cannot find the PIN# to Sync my Iphone. An old thread showed the unit in the car to find the Pin called the PK. Mine shows a sticker but and says PK but there is no #!! There is an esn and other numbers. Which one is used for the PIN#? How many digits is it supposed to be? Thx!