Wiring help, Smoke escaped!

[Job]

Hi All,
I wired my 29 Station Wagon a few years ago and she ran just fine while being rebuilt. She's been in the barn while the body was slowly being finished. This week I added the tail lights and a Truck-lite turn signal kit #900. Today I turned her key on, did not start her, turned the light switch on, saw one head light was on, walked to the rear to check tail lights, none were on and saw smoke pouring from the engine compartment. Hit the cutoff switch and found the wire to the generator Cut-Out hot, brown and crispy(and losing it's smoke) and the wire to the tail lights warm to the touch.
Where should I start looking?