We have a 12V cooler as well. I need to get it down from the Attic and see how well it works. The rear cig plug in the back still says 12V on our 2023 MX. I guess they didn't have any covers to say 16V yet?Not sure about his, but my 12V cooler does have a voltage display, yeah. I tried using a 12V extension cable in my Classic X with it and had just enough voltage drop for it to cut out occasionally.
Another advantage of the newer architecture.