called my dealer tech, and he instantly told me under the drawer to the right of the fuse panel.
Did I mention the dealer I bought it from Friday is awesome:-)
to sync the control to the unit, you need to unlock the remote (enter the pin), then while holding the black button on the receiver board, press the "light" button on the remote. -Boom, you are now sync'd.
to reprogam the order of buttons / or what is controled, you can download the pdf directly from lippert.
to the pdf for mine. (fyi, there are multiple versions of the "Rapid Camp" or "linc" as Lippert refers to it.