Vent Selector Stuck
So, it appears that the cables seem to work for the selector. When I unplug the end down by my feet, I can easily change the setting. When it's plugged in, I can't.
It looks like the part that is supposed to be moved by the connector end of the cable by my feet is stuck. And I'm not sure why, nor how I would go about fixing it.
So, take a look at the picture to get a better understanding if you don't already know. The cable that connects to the vent knob connects to the white plastic shown in the picture. The knob in the middle is supposed to be moved when the vent selector moves. That would then in turn move the black plastic behind the white. I'm assuming that would be how it changes the location. Beyond that step, I'm not sure. But the black plastic that is supposed to move is stuck on the defrost setting, or all the way at the bottom.