My turn! So I pulled my glovebox, and was presented with the black barrier thing. I was supprised to see that the screwheads were a little stripped, because my luck usually goes that no one improves anything before I own it.
Then I unscrewed the resistor box. It says "Up" on the top, in case you're an idiot!
When I removed the box...
WHOLLY CRAP!
So I started scooping. And scooping. And digging. And sucking. Good thing for my tiny girl hands!
Afterward, I was left with a sparkly clean blower box, resistor cage, and a mountain of leaves, pine needles, and mats of some sort of gray fiber.
I didn't find any poops, so I don't think the weird fiber is a nest... but who knows!
And as for the mysterious white powder on the floor, I assure you that I'm not trafficking contraband. It's baking soda, to improve the smell of my filthy truck.