There are lots of phones...... my Blueberry 8700 works VERY well with all functions such as phone book etc, and my wife uses the RAZR in her 2003 X5 with the same results. We haven't bothered with a snap in adapter as we are generally not our cars long enough to be worth the hassle (and I kept leaving mine in the car) and use a cord charger from the cig lighter. If you want to know which phones work prior to buying them, go to phone forums such as
www.expansys.com or
www.howardsforums.com and check out the particular model and the postings......