I could REALLY use some wiring assistance

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I'm having trouble getting the wiring between the coach and the toad to work and could use some help.

I have a 7 pin hookup at the coach that goes to a four wires at the toad end of the cable. The toad is wired with a female flat four plug. I assume it's wired properly because lord knows I paid enough for it to be done right.

I bought a male flat four plug to wire to the toad end of the cable.

The four wires leaving the coach are brown, black, white, and red.

The four wires at the flat four plug are white, yellow, green, and brown.

I assume the white goes to white, and the brown goes to brown, but as I have learned, assuming anything with these RVs is a friggin' mistake.

Can anyone tell me which wires should spliced into which?

I'll dance at your wedding.

Thanks,
Ed

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I figured it out. However, I have a bad connector at the coach that is going to have to be addressed.