On the side view mirror switch, Should that be lite when the park lites are on?? I have taken the switch **** off and held a flashlite under it and the arrows will lite up. the stud that the **** goes on is clear as well.. My window switches lights up, so I was thinking that my power mirror switch should also...

 

I looked on my truck and it doesn't light up either. So I looked in the wiring manual and it doesn't show an illumination wire.