You need

a box of electronics (PSE) in your trunk
a cradle in your console
a bluetooth adapter to fit into cradle
a compatible phone

Must have original radio, not an aftermarket replacement.

information here

http://phdwebsite.powerpulse.cc/Phone%20Install%20Bulletins/E%20Sedan%2002-01.pdf

http://www.wireless4mb.com

__________________
Kent Christensen
Albuquerque
'07 GL320CDI, '10 CL550. '01 Porsche Boxster
Two BMW motorcycles