Those are the sizes. The two small wires in each bundle are indeed 24 awg stranded.
I just wired backup lights to Aux 6 yesterday. My Klein Katapult 8-22 awg stripper was not nearly small enough to strip the 24 awg wires. I bought a Klein 22-32 stranded stripper from Home Depot that did the job.
The aux and pass through wires are very short. I extended all six of the aux wires and all six of the pass through wires, by soldering a foot or so of 14 awg to each wire, then used two 6-way Deutsch connectors with pins and sockets.
I used a relay so the little bitty wires from the aux switches are ok, as they are just used as a trigger to the relay.
I'll eventually put some pictures up.
Best of luck with your project.
Thanks for the info. I'm wiring up 2 sets of squadron pros and a set of KC highlights. I was going to put them on 3-5, but maybe I'll just put them on 1-3, use 4 for a reverse set of squadron pros, and use relays for switch 5-6 for other things.
Really would love to know why the heck they went with 15/10/5 circuits when the super duty has a few 40 amp circuits. Would also love some proper sized wires.