Anyone Know Gentex Mirrors?

[1-PU70]

I have this gentex Mirror I want to mount in my truck. It has outo dim and map lights. It has five wires going into it. Black is ground, red or pink is the map lights, brown light up the auto dim button. But I have 2 wires left, a blue with a white stripe and another black. The plug that goes into the back of the mirror is numbered 1 through 7 for the wires. 1, 2, 3, 6, 7 are the numbers being used. Any help?