Does anyone know where the connector is for the light on the gear shift? it does not light up ever since i i got my transmission changed.

I just got a 2011 Patriot Latitude 2.0 2X4 automatic and it states online that it comes standard with a towing prep group that has wiring harness and oil cooler. I can not find the harness anywhere nor under the vehicle. Am I blind? ~Also where is the oil cooler? ~I want to install a hitch...