B+ is applied at all times to the POWER MIRROR fuse to the power mirror fused circuit to the outside rearview mirror switch. When the selector switch (inside of the outside mirror switch) is set to either LH or RH side, and then the mirror is move in either up or down, B+ is then applied to the corresponding motor inside of the outside rearview mirror. The ground for the mirrors is supplied by the outside rearview mirror switch.