Is this the plastic case unit? If so I can tell you I have picked up 4 control boards from the wrecking yards and all of them where bad. Either the unit is totally dead or the motor hums and I guess it will burn out after a while. The color code is confussed since I pulled so many from varying makes to make one to fit my wife's Buick. One wire is ground, one wire is hot all the time with or without the key on, one wire is hot only when radio is on(called the trigger wire). Easest way is to use an older all metal Hirshman unit. You may need to transfer your anttena mast. Note that I made a hirshman from a mercedes work with three wires even though mercedes uses five wires for some reason. Bill D.