You are kinda on your own here...
The RV WORLD wiring is usually BLACK for hot and WHITE for Ground... The RV World follows the house wiring codes...
The AUTOMOTIVE WORLD RED is for HOT and BLACK is for Ground..
The Problem is the RV World incorporates a BATTERY so you will find all kinds of mixing wire colors as things are used for both Automotive and RV's worlds...
Then if you pick up a New To You trailer you will have no idea what the previous owner has added...
You just have to trace out the wiring and see where they go in most cases...
Usually not hard to trace the battery wiring out... I always note on the battery case where the NEG TERMINAL is located and then wire accordingly...
I like to use the HEAT SHRINK TUBING at the terminal ends and either write on the labels or use a color I know what is what... I also want all of my terminal connections using the ring terminals.
Roy Ken
