Hold on, did you get those part numbers from my post above??
That was for kend who has a coupe.
Have a look on here....
http://www.realoem.com/bmw/select.do
Go to vehicle trim and find the parts, you want the trim for a car with top hi-fi.
Then get the dealer to confirm this is the trim they would order for your shape car and production month if the car had the locig7 sound.