2013 Reg cab mystery wiring connector

Does anybody know what this unused wiring connector is for in my 2013 Reg Cab 4x4 AT truck? It's a white 4 pin connector with gray(beige), blue, black and pink wires. I'm looking through the wiring manual pdf and so far the only thing I see that looks like it is the S21 connector but I can't find a good reference for it. I thought maybe it was for the rear tailgate camera but the wires at the back for that are white, red, blue and black. I thought it could be related to the clutch start cancel as well since the automatic trucks don't need that switch. I may be hooking up some aux lights and wondering if there is a power wire in this connector I could tap into.