Hey guys I just bought an 07 FX2. The truck has the monitor for the back up camera mounted in the rear view mirror. The image seems to be out of focus (fuzzy), I have a + button on the left side on the mirror and a - button on the right. What are these for and what does the "cam" button do? Is there a way to bring my camera into better focus? Thanks in advance.

 

that button shuts off your electromatic mirror i believe the mirror should auto focus, try to clean the lens that always helps me see more clearly