Electrical problem

Don't know which white connector you're at. If you're under the steering column there are two. One for the signals, hazard, and horn, that has a crowd of smaller gauge wires, a rainbow of colors.
The one for ignition switch has 5 or 6 large gauge wires. A red, a brown, a blue, a yellow, a black, etc... If you separated the ignition switch connector and didn't find melting there, we'll assume the problem is elsewhere in the harness.