A mirror system for a vehicle comprising an exterior rearview mirror assembly, which includes a fixed portion which is configured to mount to a side of the vehicle. The method includes applying a wicking medium adjacent to a surface of the contaminated composite material. Preferably the mirrors are incompletely flat, and preferably move or are caused to rotate. In addition, the device may have a nut fastened to the stud to secure the component to the stud. The laser diode drive circuit having a temperature compensation circuit 117 further comprises a device that stores in memory a signal from a monitor photodiode 125 as light output power data and a device that implements automatic control on degradation compensation or temperature compensation for a laser diode 112 by using the light output power data as a reference voltage.