09 f150 brake controller installation
 

I have a 2009 f150 xlt. Was trying to figure out where the trailer brake adapter is to install my brake box, but I can't find it. Looked under the dash where the instructions said it would be, but no luck. Every other truck I've had usually has it in a similar location, too.
Went to 2 dealers, but they haven't done any '09's yet, so they weren't very helpful.

Does anyone know where the adapter is located so that I can plug it in and connect the brake box?
Thanks
ferris11@hotmail.com