How do I remove defrost vent on dash?

halfafish said
Also, if you haven't taken out the good vent yet, make sure to give it a shot of PB Blaster or something similar. Those plastic studs break off real easy, and the nuts tend to stick making them snap off instead of unscrew.

there was no way to access the nuts because of the air conditioning unit ,I broke off the studs very easy saved a ton of time