Did a search, no hits. Truck is a 2015 Colorado LT crewcab, short bed. I did not order the trailer package. However, the truck has a factory installed trailer hitch. It is the bumper mount style, with the below the bumper bracing. I plan to install an aftermarket hitch ( class II?) to haul bicycles.I dont really need the wiring, but the hitch ( mfg by Curt) came with a wiring harness adapter. Can anyone tell me if this truck should have the 4 pin inline connector for the trailer wiring? If it does, where is it located?