Audi A4 B8 - How to fix a rattling dash central speaker

Code for MY speaker: 8R0 035 397
Full audio upgrade video:
Audi A4 B8 - How to fix a rattling dash central speaker
Audi A4 B8 - How to fix a rattling dash central speaker
Audi A4 B8 - How to fix a rattling dash central speaker

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