Ok this is going to sound dumb, but I bought my car 5 years ago. About a year after I bought it I had some smell issues from the AC. It took me twice to take it to the dealer to get the smell out under warrenty. When they finally fixed it there was a sound coming from the vent. They said they'd charge me to open it if it wasn't something they did. I didn't have the money at the time to pay them if wasn't there fault so I just left it. Now it's 3 years later and I'm quite honestly sick of hearing it. It's literally driving me nuts. It flaps for about 5 minutes and then goes away. It's obviously coming from the AC ducts. So is there anyway to access the AC ducts from behind the glove box or do I need to pull the dash to get in there? Anyone got some suggestions? I'm hardly a mechanic and have no balls to screw with something I don't know anything about. However, this sound has to stop!!