How do I remove defrost vent on dash?

Sure it will, I did it that way with my own car.:D
point the wrench straight at the nut and turn it one flat at a time instead of trying to get it on the nut like normal and turn it all the way around.

Also, on a part you will never use again you can snap off the stud with the nut still on it.
Sometimes they snap right where the nut cut into the plastic stud.
thats what i did it worked great and saved a bunch of time greatly appreciated