Fix the Apillar/Dash Rattle! - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
Heating vent making rattling noise. How do I make it stop : r/hvacadvice
Air Vent Noise | Toyota Nation Forum
How to Soundproof an Air Vent (Inside or Outside) - Quiet Living