Starter Relay Solenoid Question

Ok so I guess its not the relay.... oh well now i have a spare. Don't judge me... lol

So I got a tester and I have power on one of the small terminals when I turn the key but not the other. I assume I need power on both. As you can see my relay is mounted with the post at the top. I have power on the I terminal... no power on the G... The G has a brown wire on it. Is that the neutral safety switch? I also found a 3 pronged plug under the master cylinder that's disconnected... I have no idea how long that's been disconnected... I plugged it back in but still not different.

What should I check for next?