Kastlez_ 10+ year member
CarAudio.com Veteran
this.get under the rear of your vehicle and look behind the tire well thru the bumper. if you see a square/plastic rectangle thing there that may very well be the pressure release vent. when found go in your trunk and remove the side wall carpetting. you should then see the vent. you can either A, remove the flapper in there and leave the vent open, but itwill cause lots of road dust to enter the trunk. B, remove the flap and tape the area closed and sealed., this most likely cause a poping in your ears sometimes when you close your car door. it'll also be a little harder to close the door, not by much but requires a little more effort. and C. what i did with mine.. still got the pressure release and a filter to keep the dirt out the car.
I sealed mine off with tape from inside of the trunk area.. the doors close fine.