for the longest time i was gettin a strange baffling sound comin from under my car when i had my sub up high. i finaly realized that its this thing in my trunk i think its for when u close the trunk it releases pressure. its on the inside corner and u can open and close it its like a horzontal blind for a house. i think im loosin alot of sound through it since it baffles like a sob. my trunk in entirely covered with deadner(2 layers) expect for that thing. think i should cover it up with deadner or does it serve another purpose that im missin out on?
i just put deadener over mine. ive got a tahoe and they're in the back top corners. when i turn my a/c on full blast and close all the doors i can hear the cab pressurize and air seep out haha. makes your ears pop sometimes too. other than that no biggie
I covered mine with deadner, when I go to close the truck I don't close it from wide open just like 5" from being closed then slam it shut. I haven't had any problems. For those who haven't sealed theirs on an older vehicle like 6ys+ those flaps will dry out and fall apart and suck dirt in.