OK, I think I am starting to understand what you guys are trying to tell me. I think I just did not want to believe it, cuz it means more work. I still don't understand why the Sub Out connection on the back of the HU doesn't just correspond to some wires in the wiring harness they supplied me.

Anyway. I realize now that I need to run the connections from the RCA Sub Out of the HU to the AMP in the floorboard. I have the floor ripped up and have the AMP upside down with the two wiring connectors facing me.....see pic.

Can I just tap into the wires on the wiring connector with a vampire tap or is the purpose to cut the wire and connect my new wires from HU to the connector and leave the old wire disconnected/cut?

Thanks.