RE: Vent Fan From Behind the Refrigerator

Instead of curring more holes/adding a vent several people have used the
shore water connection for that since virtually no one uses the shore water
connection.  What is needed is straight forward.  Remove the exterior
plastic fitting, disconnect the connection going to the faucet and plug the
line with a 3/8" flare plug.  Cut the back off the outside housing.  Epoxy a
muffin fan to the back and wire it into a switch, mount switch where you
want.  Reinstall in the side of the van.  When parked and running on propane
prop the outside flap open and turn on the fan.  BTDT and it did help with
'fridge cooling and vented the heat outside, could feel it at the exhaust.
One caution, you are now more vulnerable to water and rain getting in
through there.