Okay... so I got tired of the center vents on my '84 300D not working, so I decided to just remove the flap inside the vent box behind the dash so they would work all the time. All went well until I didn't catch the flap fast enough and it fell down - I assume to the bottom of the vent box, correct? Or where did that bugger go? Will that cause any problems? The air come outs the center vents great now, so hopefully that flap down there won't cause any future problems. Short of tearing open that box to find that vent flap, I figured it would be best to just let it go. :p