Location of factory trailer brake plug

So I have a 19 TRD OR with the hitch, 4 and 7 way plugs on the bumper. I got the redarc pro Elite trailer brake controller and got the switch installed in the dash (which sucked cause the one they supply is the more square style in the truck but I only have one switch that's not used but it's the long style) anywho went to find the factory plug under the left drivers side kick panel and after much swearing and feeling around it is not over there anywhere. Does the 19 have one? Is it somewhere else?

Also installed the anytime front and rear camera kit and the Cali raised 3 switch panel (instead of that little cubby above the switched to the left of the wheel) front camera kit was super easy, hardest part was getting the camera in a good spot. Wish they had the camera flipped but different thread. Just looking for that darn trailer plug.... Any help would be great.

 

Thanks Vbpiper! I tried finding any threads about it and couldn't find one that was helpful but I'll pop that panel off again and look there.

 

If you need a harness adapter for it, make sure it comes with the ground wire.