Swinger Rocker/Quarter Drain Question

Ya, I had my heater box and air box off so reached into the cowl to get out what I could and then washed it out. The dust/dirt out here in the desert is amazing where it can get and stay. I think if I pulled my headliner out I would have caked on dirt on the ceiling.

The seats in this car are cloth and I have actually ran a garden hose on then for a while to try and get the dust out. After they dried, hit them with your hand and poof, still more dust.