I’m on my 7th Mustang. My last one I still own. It’s a 2012 V6 drop. Funny thing. The AC on driver’s side vents is cool, but nowhere near as cool as the passenger vents. Never had any AC issues with any of Mustangs albeit this guy is over 12 years old and has 168K miles.

What should my first concern be?
Leak? Actuator?

Thanks all!