Verifying A Pillar Air Leak

[Hittntherooad]

Short off having my wife drive and me laying up top on the overhead bunk I put my leaf blower in the corner. Climbed up top and yes, air was coming in. Packed the bottom with insulation. Too hard to get to underneath with foam but put sprayfoam in the top. Should help immensly while driving in hot and cold.
You can see Thors half attempt to fill with foam.

[Hittntherooad]

Insulation
There is actually 2 places there for air to come in. There is a rectangle piece of aluminum that goes to the top and the fiberglass pillar which is hollow.