I know there are several posts on this subject, but I was wondering why some vehicles have them installed and others don't (I don't). What size fan is normally installed? It's been mentioned it's installed on the RHS (passenger side) of the condensor, why not over the whole thing? Anyone have pics of one installed in their car? Would the wiring be there since some cars of my model have them and others don't? I guess the fan would be set up as a pusher as there's no room to mount it behind the condensor. Any help appreciated....