My daughter has a 1999 Mercury cougar. Her heater/defroster went out. We replaced the fuse but that's not the problem. We replaced the blower and that's not the problem. We have taken it to several mechanics who say they cant check the relay unless we have an owner manual, which of course we do not have. Can someone either help us with a owner manual or tell us which relay operates the heater/defroster and where it's located? i.e. the color of the relay, the number of the relay, inside passenger compartment or outside driver area, etc. Any help would be greatly appreciated.