If you already have an MB phone system in your car, you're in luck. It should already have the Autosense PSE and V60 cradle. All you need is the V60 puck from AWS (
https://www.wireless4mb.com/) and a compatible phone (which you do not have to purchase from AWS). See
http://www.benzworld.org/forums/show...26#post2222126 for compatibility issues. AWS should be able to tell you when you order the puck if your phone and firmware combination are "approved" and will work with it; if you are told they are not "approved" then search the forums for contributors' success (or lack thereof) with different phones, and be aware that both physical equipment and firmware versions can cause problems.
If you do not already have a phone installation, you will need the equipment and procedures in the phone bulletin for your car. See
http://home.earthlink.net/~phdwebsit..._bulletins.htm