I have the same issue with the radio in my Wrangler JL. (1) I will be charging my Ipad or Iphone and it will over charge the phone, so it is hot. (2) I will be driving down the road at night and the whole Dash board lights, radio will die and come back on. (3) Just the radio reboots.
It sounds like the TIPM (Totally Integrated Power Module) might be faulty. https://www.knowyourparts.com/technical-resources/electrical/late-model-chrysler-tipm-diagnostics/