The Green wire is the factory test ground ground. It isn't connected to anything now.
The Red wire should be connected to the battery (+) terminal. In the OEM wire harness there is a short red (thick) wire that connects to the (+) terminal of the battery (a lug) and the opposite end connects to the (+) terminal of the starter solenoid. The little Red wire is then connected to a female Red one like it, which goes to the keyswitch.