What are these parts & how do I test them?

Is there anything between the starter relay and the ignition switch that needs to be checked? Otherwise, I assume its a bad ignition switch.

Ya know I've explained this. PLEASE re-read what I've posted.

Look up above with my post with the diagram. This is your ignition switch connector. It comes out of the column close to where the column meets the bottom of the dash. You need to get a light or meter and check at that connector.

FROM THERE the yellow wire goes through the bulkhead connector

CHECK for power on the yellow AT THE RELAY with the key IN START. If you have power there, either you did not get the other relay terminal grounded, or the relay is bad

If you do NOT have power there, check at the yellow wire at the ignition switch connector. If you DO have power there and NOT at the relay, it's the bulkhead connector

If you do NOT have power there at the switch connector check for power coming TO THE SWITCH CONNECTOR

Look at the diagram above.

The top wire is the yellow start wire

The largest red wire, 5th from the bottom, is the incoming battery.