Figure anything out yet?

 

Fixed mine... Ran a new ground cable. I was too lazy to undo the starter for the 70 billionth time, not to mention the cable I bought was too short, so I grounded it at the front of the engine. And connected them both to the neg terminal, since the stock cable still had the wire grounding to the body.

Started it right up, no clicking, no gauge problems, no headlights turning on when I lock my doors

Wish I would have tried that before blowing cash on a starter, new relays and fuses, a pushbutton ignition I rigged up, new bat-to-starter cable, new battery-to-fuseblock cable. blah