87 antenna wires

[stu]

Does anyone know which wire does what on the power antenna for an 87? There are three wires, green, white, and gray. I am assuming that these are for power, ground, and switched, but don't know which does what.

 

[JonM]

Green = power
Gray=Up (if you ground it)
White=Down (if you ground it)

 

[stu]

Thanks!!!