7 Pin Trailer Brake Wiring. Trailer plug wiring is standardized across all vehicles, no point trying to find vehicle specific info. Something to be said for the wires being in a wiring harness.
The male end is mounted on the vehicle side and the female on the trailer side. Worried about RV brake controller warnings? If you want to install a brake controller that's another issue wiring-wise, and there are threads here which cover that too.
Choose a connector that has the required number of pins for the functions required.
That diagram is very clear on that.
Regardless of wire color, the pin position for function is pretty standard. Find the blue wire that comes off of your electronic brake controller. Building Tiny House on Flatbed Trailer and Need Brake Controller and Wiring for Electric Brakes.