I mentioned that my D's A/C does not cool very well on hot sunny days in stop and go traffic. He advised me to add an auxiliary electric fan to the front of the condensor. Claims it will help dispell heat in idle situations where there is insufficient airflow. This in turn will increase the cooling efficiency espcially in low speed driving situations. It may also help alleviate the "Roaring Fan" noise. Any ideas on whats a good fan to install that will work on our D's?