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If any of you gassers could use an extra dash switch, the diesels have an engine brake switch that you can use for anything. You can replace your traction control switch with a combination traction control/ engine brake switch for about $15 (from online parts). The PN is HC3Z-13D730-BA for 2017 -2020, not sure about 2021 . The connector is the same in your gasser and the wires are unused. Just cut the green/white (pin #4) and gray (pin #1) wires coming out of the switch and you have a normally open momentary switch that you can use for anything. It is a small contact switch, so if you want to drive anything over 1 amp, I would use a relay. I used a relay to drive 15 amp train horns on my truck. If you wanted to use it as a regular on/off type switch, you could just latch a couple of relays.
