Hi, I am a new member here. My wife has a 1999 Mustang GT 5-speed and we are having some lighting problems with it. The fog lights do not work, the indicating light on the switch doesn't even come on when you try to turn them on. The 3rd brake light on the trunk lid doesn't work and the reverse lamps do not work either. None of these have worked for as long as she has owned the car ( about 2 years ) but these problems really bug me and I want them fixed. I'm a fairly good electrician/mechanic so I can fix them but I am at a loss as to what the problem is. I figured it was probably a fuse or the lights were burned out or something simple like that but it isn't any of those, fuses and bulbs are good. I don't have a wiring diagram for the mustang like I do my SVT Focus so I'm not sure what components are on the same circuit as these. Does the fog light have a high-beam cut-off relay? If so, that would be something else I could check for the fogs, but the reverse lamps and 3rd brake light problem makes no sense to me. Any input?