Need to adjust the view of the backup camera. It currently shows the rear of the motorhome, towbar and hood of toad. No adjustment on monitor screen. Attempted to loosen mounting bolts on each side of camera but found they are not faceted for a wrench. There's no room around the camera due to the rear cap. Noticed a hatch cover bolted to the roof above the rear cap but have no way to get on roof. No rear ladder on the Forza. Anyone find