5 To 4 Wire Trailer Wiring Diagram. One that won't require extra cable purchases and all should go for The exact wiring will depend on your car model. You can do this with documentation, or by testing with a multimeter.
If you're towing just for the day and don't ever plan to tow again, you can pick up some adapters that replace the Do not freak. I used the search function but didn't see the trailer wiring diagram with the factory color codes or lists with them. I drew this crude diagram to help explain.
We know your feelings because we used to be in this weird.
On the cover it shows that I have positive on what should be a big fat orange wire but I've got nothing.
Our trailer wiring diagram is a colour coded guide designed to help you wire your trailer plug or socket. Attached here is the wire diagram that I use when I build my own wire harness for a trailer using standard automotive relays. I drew this crude diagram to help explain.