While hunting down why the panel vents were not working on the climate control (vacuum leak), I happened to look down and see a 2 wire plug just hanging there. 5 wires come out of main loom, 1 ground, 2 in a connector for the A/C accumulator, and 2 others in another grey push on connector with a clip just like the other one. Where does it plug into? There is enough wire to reach about 6" away from the A/C accumulator. Help?