[kbsparky]

Im wireing my detached garage and ran 2-2-2-4 alum wire 120ft in conduit. Im at the stage of hooking it up in the 100amp box. I found the black- white- ground but no where to hook up the neutral. Any answers

What type of wire was this? Type SE-R, or URD?

There should be a black, red stripe, white stripe, and green stripe conductors if you used type URD cable. The black and red connect to the two line terminals in your sub-panel. The white connects to the neutral bar, and the green to the grounding bar.

There should also be a grounding electrode conductor on the ground bar as well.