Has anyone experienced a bird like chirp from within the cabin when travelling over bumps in their passat? (anything other than small road indents)

Mine is clearly coming from the right hand side of the cabin, possibly b/c pillar door seals but i cant for the life of me pinpoint it due to happening for a split second at a time.

Bloody annoying - and just started happening (now 75k+). possibly a lube job? any similar experiences/fixes?


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