Any movement of air should help you cool it down some what, try and draw air in from as lo as you can, is there anyway you can move that exhaust fan closer ? or even put it in or next to ? The Fan should be pretty quiet they don't make much noise at all, If you can find a way to get cooler air into your box like run a inlet pipe from a nearby source of cooler air flow. good luck hope all works out for you....