Trunk rattles

[martattack]

Does anyone here with subwoofers in the trunk have problems with the air vent behind the bumper on the right side of the car flapping as the air moves in the trunk? It sounds like flapping plastic and is very annoying. Anyone know what to do about this. The vent is for the air to escape the car when you have the climate control on.

[ryhi]

yea...i got the same problem!!! sounds like a bird flapping its wiings!! someone help me find out what it is!!

[martattack]

I know exactly what it is, but how to stop it is what I don' t know. There i a "one way vent" that lets all the air sucked in from the front vents and circulates it out the back. There are little rubber flappers that let the air out but not in. When the subs move the air, it pushes the air out and then when it goes back in, it creates a vacuum and the flappers smack the vent. Damn these air tight cars.

[fastmayte]

hahaha, air tight. sounds like it's farting... hahaha

[jnolte]

same with my freinds AUdi A4 he has a 12 inch W6 v.2

and it flaps!

[GDawgC220]

yep...i got that rattling problem with my subs as well :(

i still haven't found a way to stop it.

[mbsickness]

So that is what is rattling around back there. I was about to try and see if I could tighten something up. You guys have saved me a bunch of time...thanks.

[ryhi]

where exactly is the hole? id wanna try to remove the flaps or cork it up or something...it sounds ghetttttttto

[martattack]

The vent is on the right side of the car behind the bumper. You can see it if you pull back the right side trunk panel. It is just below the vacuum pump equipment. I think you need to pull off the bumper cover to remove it, but I may be wrong.