Location of temp actuator 04 Suburban please

I need to replace a temp actuator on an 04 Suburban, I see the duct actuator but can't seem to locate the temp actuator.

This is the model with the dual zone so each side has 2 actuators.

I need the location for the driver side one.

If anyone knows where it is or has a diagram they could post it would be of great assistance.

To replace the actuator: Take off the duct shroud ( 4 screws ) and the actuator is right above the hump in the floor, only 2 screws & pull down. You can feel the spindel or shaft that connets to to flapper that lets in the heated air, open and close manually with your finger tips an you can hear it open & close. Line that shaft to the opening in the actuator and reinstall the 2 screws.