One added option whilst you have access to the airbag mounts for the passenger side.... Remove the airbag completely. Buy a B3 glove box and install in its place - the glove box is unchanged for the B4. Plug a 1.8 ohm resistor into the airbag connector and the airbag warning light will not come on. You get: (1) A proper glove box. (2) Rid of an explosive device in your passenger's face. Similar can be done for the driver: unplug airbag & insert another 1.8 ohm there, remount the now inert airbag. Remember: those airbags were the Ralph Nader full-explosive-force ones that can snap your neck.
I believe the foil covered foam tape is really pipe insulating tape. I was tempted to buy some at the farm and home but remembered I had some sticky backed felt that wasn't doing anything.I get the HVAC tape, but tell me about the foamy stuff you guys are using.
Yes, that's a problem too, I agree. Not really sure what a person can do about it. IIRC the original foam is a thin piece either applied to the edge of the flap or fitted into a U channel that's plastic. Been a while since I looked at it.On the B4V, I split the box and used the tape and felt. I created a good seal.
The issue is the foam is also missing on the dash vent dampers. Closing the vents, now creates an irritating whistle on speeds 2 and higher. I need to redirect top the windshield to stop it.