I need some help, I got a 88 5.0 that I just picked up and I have a little issue. The windows, wipers, horn, radio doesn't work. My lights, door chime, and locks work. I checked the fuses and they are good. Could it be a bad ignition switch? All of those don't work unless you turn the switch on (except the horn) thats why I am thinking that. Anyone have any ideas?