AC only runs on one side

[Randino]

When I get in the car the auto AC only blows air on one side. It is louder and the stronger airflow dries out my eyes. How do you get the passenger side airflow to work automatically every time?

 

[Young Phenom]

Touch the passenger side of the screen everytime or keep something heavy on the seat

 

[BigNick]

Buckle the passenger's belt or stick an extender in the passenger's latch?