I am replacing the doors on my 78 Blazer with doors from a 90 Suburban and have a wiring question. I have the power windows and door locks working, but I am not sure how the electric mirrors are wired. The left side has three wires (yellow, white, and blue) The right side has five wires (yellow, white, blue, orange and black). I am guessing that the yellow, white, and blue wires from one side are connected to the matching wires on the other side. The black wire is probably ground and the orange power. Can anyone confirm this? What size fuse is used for the power?