Originally Posted by coopersim
MEGA is your man for sounds!
Professional is the head unit, you can still have the standard speakers with the Pro head unit.
Loudspeaker system - BMW Business
Loudspeaker system - harmon/kardon surround sound
are the available upgrade options from new
That kind of comments make me laugh seriously. No disrespect to Mega though.
Fella, read what Hopeful & Mob17 posted.