The electric fan on front is thermally controlled. When the radiator fluid gets hot enough it kicks on to provide additional cooling until the fluid temp drops to acceptable limits, then kicks back off. It operates independently of the AC, but would come on more with the AC on due to the additional strain. Go buy an electric fan off of ebay and throw it on there. You should be able to mount it in addition to your standard fan and just run a switch into the cabin. Then you can just disconnect your stock thermal fan when fording water only, and have the option to run your extra fan when you know you will be heating up the VX(like when you are about to climb a hill). I know for a fact you can mount 2-12" electric fans on the radiator, but you have to remove the stock fan and adapt the center mount between the hood latch and the lower frame(easy to do). The stock fan is only 8"-10", so throwing a bigger fan on is good stuff.