Id like to know how to get into the fuse box too! The owners manual is no help, it just shows the location and an arrow I assume indicates a pulling motion. I tugged as hard as I dared with no luck . No visible screws or fasteners.
Not much to see up under the mirror. This is looking straight up, just the plastic box up against the back of the mirror
Edit- to explain this the front of the truck would be to the right and you can see the back side of the mirror on the left
Heres my Magnetic Lariat Sport, no FX4 package but Im pretty sure it had the "trail control" button, which I thought was fx4 specific. I pick it up tomorrow so I,ll check.