Wiring Question & Battery Drain Issue

[kevin67c10]

Folks,

I am having a battery drain problem and I am not sure what is causing it. If anyone has any tips on troubleshooting these types of problems for a 1967 Chevy C10, let me know. The Generator Light is always on, so the battery isn't charging. One thought I had would be to remove fuses one at a time to see if there was a short in the wiring related to one of those fuses (essentially, if the generator light goes off with the removal of a particular fuse, I know where the problem lies..)

And see the attached picture - does anyone know what this wire goes to? This, to my knowledge, has never been attached..

Let me know - Thanks!