Got it from Home Depot for 3 bucks so... Cheap?
I'm using the wire that was already there... 3 white, 1 red, 1 greyish
So I wrapped the body of the plug and screwed in the bottom screw to the box and tried again, saw a spark
It works when out of the wall (and my surge protector says that both plugs are grounded)
So the three white cables are connected to the neutral side, the red wire is connected to the hot side, and the grey wire is connected to ground
The old plug was being replaced because it didn't hold onto the cords anymore, 3 prong cables would fall out of I shut the door too hard
The grey strikes me as odd because I can see green wires running through the back of the cable box... Then again, it's an old apartment so it could just be a faded green
It looks like the grey does go to ground...
Solved! IDK why but grey is another hot wire
So plugging them both into the hot side and popping that tab off fixed it