there is a turn wheel switch on the inside of the glove box what does this do??

It opens a vent to keep the glovebox cool when the aircon is on, or keeps your pasties warm in the winter.

Last part might not be true lol.

The wheel on the inside opens and closes the A/C for glovebox.

Once the wheel is turned you should be able to feel a hole that will let the air in.

hadnt noticed it before! shows how often i go in there! im going to newquay next week so it would be good if it did keep my pastys warm thanks grizzle!!