I just noticed I have no illumination in my lower glove box and I do not see a socket for a light bulb. The top box is lit so I'm guessing I'm missing something in the lower box?
Yup. The only light on the mirror adjustment control is on the L and R selector switchOK, that answers that question, but here's another light question: The window controls on the driver's door are lit but the power mirror controls just above them are not. Is this the way it is on your trucks?