Result:

Green wire from relay to green/black reverse light wire White wire from relay to ground connection Red wire from relay to 12 volt power battery connection Black wire from relay to yellow wire of Curt 7-way adapter. |

The Atwood Air Command 13.5K Btu Rooftop RV Air Conditioner # AT15027-22 is definitely a solid choice but I recommend going with the Furrion Chill HE RV Air Conditioner System - Single Zone - 15,000 Btu - Black # FR23PV instead for a few reasons; when we tested for sound the Furrion units were about the same as the Atwood when it comes to noise level, the Furrion looks more updated not only with the AC unit but also with the wall thermostat design, the Furrion is a bit more powerful so if you ever need the extra power it's right there and waiting, and finally the Atwood company was bought out a few years ago so their products are basically slowly becoming non-existent so it will be easier to find replacement parts in the future for the Furrion. |

If you are trying to replace a broken harness then you will want the Pollak Black Plastic, 7-Pole, RV Blade-Style Trailer Socket - Vehicle End item # PK12-707E. | would you please tell me the wire color code...

This means that if the vehicle did not come with the 7-Way RV style connector attached and that the wiring was not completed at the factory to provide power from the vehicle battery and for the signals. |...