Just a funny issue, when you have slightly damaged clips on the rear loudspeaker cover it will fall out when you drive 60+ in high winds. The only solution I found was to use industrial double sided tape 
Check that cover when you buy a car, I'm sure I bought a botched one and being BMW part it's around £40 for a new one.
https://ibb.co/yP5Pvrh
Check that cover when you buy a car, I'm sure I bought a botched one and being BMW part it's around £40 for a new one.
https://ibb.co/yP5Pvrh