What are these two pieces of equipment?
I went exploring in my storage bays today and came up with three questions.
#1) See photo #1 - How do I turn this light on? There is not a switch on either end.
#2) See photo #2 - What is this rectangular metal box with a knob on top?
#3) See photo #3 - What is this gauge for?
Note: All photos were taken in the third bay aft of the driver side wheel