Sitting and starting to get too hot to help draw additionaly air through. It's also infront of the AC condensor because if you're stopped and turn on the AC that fan will turn on to draw extra air through it as well. I guess if you don't use your AC while stopped it wouldn't be a huge issue, but I'd recommend trying to get your hands on one :) I don't know if those wires you're showing are the ones that it is supposed to hook up to though... I've never heard of these fans going bad so getting a used one from classifieds/Z1 wouldn't be a bad idea.