Adding a 7 pin factory wiring harness

[Mr Toad]

12v should be available. Lights / load should not be a requirement.

There may be a difference in software on my particular MY 2023 Badlands Sasquatch V6 because it only passes 12v if trailer lights are detected on startup. If I plug in the trailer with the motor running, it doesn’t show the 12V until after I restart with the trailer plugged in. This could very easily be changed through programming the BCM and trailer module to behave differently. Mine may behave differently after a software flash or FDRS configuration.

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[MJHCOBRA]

My 2025 Big Bend has a wiring harness already installed at the hitch location, but there is no hitch or the 7/4 pin plug. Other than the 7/4 plug and the hitch, are there any additional parts that I will need to purchase? I have not taken apart the wheel wells to see how much of the harness has been installed or if a module is installed.
Mr. Toad, your video was awesome and informing - Nice work.