51 42 018 Replacing speaker frame on rear left or right door trim panel
WARNING: This page is about a different car, the 2003 BMW X5 and 2002 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
51 42 000 REMOVING AND INSTALLING REAR LEFT OR RIGHT DOOR TRIM PANEL
Release plastic welded joints (1) and remove speaker frame (2).
Installation:
Install new speaker frame (1).
Push locking washers (3) onto plastic pins (2).
Shorten all plastic pins (2) down to measurement (A).