So from my understanding, under the hood I connect a wire to the aux1 (for example) wire then run it across window cowl to passenger side and connect it to the wire in engine bay on that side, then find that wire on passenger side kick panel to what whatever I'm wiring inside.

1st pic is pass through wires, pass. side in the engine bay.

2nd pic is same wires taped and bundled top left of pass. kick panel