A question for for those that spend time away in the summer. This van is the first I have had that does not have a fridge fan. Am in Benidorm at the moment and its HOT. The fridge is struggling to keep up and there does not seem to be any kits available here for some reason only clear to the Spanish. So am looking at fitting a laptop fan, but do not want to put it on a switch as I would prefer it automatic. Any suggestions on a simple thermo switch.