Called them up and they just said that I need to connect the black to ground, the red to 12 volt accessory, and the orange/green to pin A7. They said not to worry about A6. I guess that I am confused since there instructions specifically say to "Connect A6 of the vehicles harness to a 12 volt accessory wire". Maybe A6 SUPPLIES 12 volt accessory? I don't know. I've already got the 3 wires hooked up to correct wires on the harness, so this still just confuses me. Maybe it is an error in their directions?