Originally Posted by spec_ops57
You could probably take the cargo lights wires and splice them into the dome light so they're on at the same time (when the door opens)
This is correct. Just cut the black/pink wire feeding the cargos and insulate the end coming from the truck harness. Then extend the remaining end (attached to the cargo light assembly) and tee it to the black/light blue going to the dome light.
Wired this way, the cargo lights will come on whenever a door is opened or any other time the dome light comes on. This means that they will also come on when the dimmer is rolled to its stop, just like before.