I went this route about 8 years ago: http://www.bimmernav.com/bmw_e39_blu..._retrofit.html I have a 5th Generation ULF and it synchs with every phone I have ever had, including a current Iphone5.
Never got the SMS thing to work...but it is hands free. Not the cheapest solution by any stretch, but oem, nicely integrated and works well.
Factory M-Sport package with factory installed M-tech bumpers, factory Bluetooth, factory M-Audio 10" dual voice coil subs, Homelink, M5 rear stabilizer bar, Bilstein B14 PSS coil overs, Stop Tech ss brake lines, Akebono Euro Ceramic brake pads, oem Brembo and Zimmerman rotors, Dinan Stage 1 software, Strong Strut front upper stress bar.
Last edited by 540 M-Sport; 04-18-2013 at 12:18 PM.