Here is switch box installed in engine compartment.
Here is back end of RV with one camera at top for rear view and lower one just below window facing more down for backing up.
Closer view of reverse camera mounted. Let wire slope downward to help let water run away from RV wall hole instead of letting water run down wire to gromnet.
Final install of monitor on dash. So far, we like it here, but can change location if ever change mind. Used supplied stick on mounting headwhich seems quite strong, but may eventually mount more permanant f felt needed. Don't expect HD quality, but very much good enough for use.