Where is the blend door actuator located?

The driver's side A/C blows cool, and the passenger side blows warm air. I’m going to attribute it to a blend door actuator. I’ve watched a bunch of videos and noticed different locations of this part. Can someone confirm if the actuator is just under the glove box where I’d remove the kick plate? Or is it deep behind the dash where I’d have to remove the whole dash? TIA