AC not coming from top vents

[Templim]

Ayooo, been a while mates. I have a s2 r33 gtst and air stopped coming out of all the top vents.

 

My car has always made an actuator gear noise when turning the car on but that's a different issue I think? Did searches and am at process of thinking it's an actuator or some type of motor? I see a few different actuators and don't know which one. Would be nice to know if it was the one that's under the steering wheel so the dash doesn't need to come out.

Edited March 31 by Templim
Edits

[GTSBoy]

What HVAC actuator is under the steering wheel? Do you mean on the RHS of the centre console, immediately to the left of your shin?

If so, then yes, it is probably that one, because that is the mode door actuator, and from what I know, it's still a pain in the arse to replace. I don't know about whole dash out, but you certainly have to rip into the centre console section. I don't know if it's covered in the workshop manual, as I haven't spent much time looking at those parts of it. (and by "the workshop manual, I mean the R32 GTR one, which is the most comprehensive one we have, and it should be similar enough between that and later cars to serve as a guide).