Hi Everyone,
So the RB26DETT negative battery cable has 3 points that it mounts to the car (BNR32). The top goes to the Battery (obviously), then there are two eyelets. I'm assuming the eyelet in the middle of the cable goes to the body somewhere, and the eyelet on the end of the cable goes to the engine somewhere.

Does anyone have a pic or two on the factory location where those eyelets get bolted to? Thanks so much guys.

After hours of trying to find some photos, I was able to find an off topic video by Goodezilla and made these screen shots. This answers my question and hope it helps in the future. Thanks guys!