Double cab rear passenger heat/air.

I have noticed vents at the rear of my center console at the floor on my 08 DC Tacoma. I know my 06 Pilot has a switch on the dashboard to engage this vent so the rear passengers can manually select their own temperatures. How do I get air flow out of the rear floor vent on the DC Tacoma. Is there a certain position on the HVAC to send air through this vent.
Thanks for any input/advice.

 

That vent you see on the console is for the inverter for the plug in the bed. The vents for the rear passengers are under the driver and passenger front seats. So when you put the heat/air to the foot position, it blows to the rear passeneger vents under the seats.

 

Thanks for the quick replies. i didn't realize that the power inverter was in the center consul. Thanks again Bandit, and Deevon911.