Thanks for the tip. I looked at the website you recommended and found an
option of 9 sheets for $125. Sounds good to me. Have you tried any similar
products? Any comments on results?

I also continue to work on air leakage noise around door and window seals. I
have had some success with ordinary strips of window insulation placed in
the door seams. It's necessary to experiment with different widths and
depths of the product but it can help.

Fortunately, this dark gray product can't be seen when the door is closed
and is not very noticeable with the door is open. It dampens air leakage
noise and I recommend it to others. However, what's really needed in my 89
Westy is new door and window rubber seals. That product is also very expensive.