GTD air conditioning (AC) functioning

[Roussillon]

Hello,

can someone of you explain to me how to use the air conditioning in a gtd replica.
I mean when you are in the car which button do you touch to switch it on and have fresh air coming.

Thank you by advance for any return. Franck

 

[Malcolm]

post a picture of your dashboard. there was a standard layout. rotary knob in the middle if i recall correctly.