Hi all,
Just read through this excellent post(great write-up!)! FYI---that little black plastic dealio in the middle of the inside of door panel is called a "Grip Support"(Part #51418156532). They break cuz they get brittle and when you give a yank to get panel off after detaching all clips/wires/connections/etc., they will crack sometimes.

Steve

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'04 E53 3.0i
189K+ miles