If you live in hot or hot and humid climates, you will gain a bit of AC performance by wiring the pusher fan to come on whenever AC is on. There is a pressure switch alongside the passenger-side frame rail just aft of the radiator. Unplug the connector and jumper across it (a paper clip works well), then wrap it well in electrician's tape.

If you only drive on the highway, you probably won't notice the difference, but if your driving includes any short-hop or city driving, this will help a bit.