66 Valiant Electrical Issue?

Okay, so I've unplugged each switch one by one and the light still lights up.

I've unplugged each fuse one by one and the light still lights up as well.

That's if I'm doing this right. I'm touching the headlamp wires to where the splice is burnt in half.....if that's what I'm supposed to be doing??

The ignition switch is even unplugged.