The deal your electrical guy is pointing toward is a connector coming out of the steering column... It feed to & returns from the ignition switch... Pretty common to have it burned like the picture below... But that feeds switched loads & the headlights aren't....

The thing is once you learn to add relays & see how effective they are as well as how cheap you'll be adding them to vehicles that aren't giving you trouble just because it makes for a better vehicle..

7471430-burned.JPG (157 downloads)

"The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."