Where does cabin air exit?

My F250 has a couple of exit vents at the back of the cab between it and the bed.

Reason I ask is because my sunroof is popping whenever the cabin air is on fresh. Recirculate, crack a window or turn the fan off, it stops. So I feel like the cabin pressure is making it separate, which also means the air has nowhere else to go (which means the intake probably works poorly)

So how or where is the air pressure supposed to get out on a double cab?

 

isnt there one behind the back of the cab? pretty much dead center after you pull all the plastic off of the back. i could be wrong but i think i saw a vent there when i was tinkering

 

But it should for the blower, right?

 

I'm wondering about this myself and on a side note i'd love to see pic's both inside and out of a sun roof in the tacoma, as i have thought of doing this myself but not sure of the out come.

AIR PRESSURE
I can close all doors and windows turn the blower on high and hear and feel the air leaking out the back rear window and the rear door handles. somethings not right here cabin pressure is not escaping properly.

 

Well the outside looks a lot like 2' of snow, plus it's dark right now but here are some older pics. The last is from the for sale ad- surprisingly I have no photos of my own from inside.







Let me know if there is anything else you need- maybe when it warms up I'll be able to get some more.

 

A lot of air comes through the door handles. By design? I'm not sure.

 

interesting and no leaks?? see thats the other deal that makes me nervous as I've always wanted a sun roof in my vehicles but always seems to have the bad rap that if it did not come from the factory it will end up leaking …

yea maybe a shot when its light out from the back to front I'm curious about the instrument cluster seems like you moved the dome light behind, smart.