There are 2 styles of kick panels half style and full. Heater vs AC doesn't matter on either as one is manually activated the other is control operated. The Vent has nothing to do with the kick panel pod.
I designed the full style version so you can actually push the pedal to the floor, BUT, you won't be able to do it with you whole foot. Again, if it is adjusted properly this is a non issue.
half style:This is the half style pod you get when you order it:
This is the half style installed in a truck:
Full (Silverado) style factory panels with the pods mocked on them:
This is the actual pod:
This is the pods installed on the truck: