[wil421]

Removing the head unit and unplugging the “Bordeaux” and violet wire[1] may help and be easier to do. It’s the LTE and 3G antennae wire.

I have a 2019 Grand Cherokee and I think we both have the updated head unit. Let me know if anything works.

[1] https://www.jeepgarage.org/threads/uaq-antenna-connections.2...