This 7-pin wiring harness is, technically, for a Telluride but it’s also plug and play for the Palisade (those that have trailer wiring, anyway). New and never used. I sold my Palisade before installing. Paid $280, asking $175 plus shipping.
I’m not certain. The only thing I can comment on is that my 2022 Calligraphy was plug n play. Unfortunately, I’m not sure if the wiring is there for other trims or year. Sorry I couldn’t be of more help.On a 2020 that only has the single fuse under the hood, does it still only have the 4-pin functions or does it somehow have the brakes and accessory lines too?