Starter Problems Please Help!!

Im putting in a starter on my 95 caprice with the lt1, and i dont have directions. i bolted it up, the thick ground, and one small wire next to the ground. there is another wire though, where does it connect? the other post next to the ground(theres two posts), or the post on the other part of the starter????please help me!!

Ok, so theres the thick blck ground wich is connected, now i need to know where the other two wires connect, theres a thin green wire, and a thicker yellow wire...what do i do????

The yellow wire connects to the solenoid start terminal. My schematics do not show a green wire. Are you certain it isn't purple?