[rich b]

You do have the battery cable hooked up to the starter and are only using the 4 post solenoid as a relay to send voltage to the solenoid terminal.

Battery cable hooked to starter.
Wire from there to battery post on 4 post solenoid.
Wire from starter post on 4 post solenoid to solenoid post on starter.
Jumper wire on 4 post solenoid as in posted pictures.
Wire from 4 post solenoid to start button as in posted pictures.