I found one more noise source today.
It's located behind the side panel where the front seat belt runs down along the "B" pillar. There's a metal clip that the seat belt goes through about mid way down. The metal clip rattles like crazy. I placed some foam padding between it and the "B" pillar and no more noise.
The seat noise was only about 20 percent of what I was hearing during my daily drive. The seat belt clip noise was the most of it.
What fun....
This picture shows the bracket in question.