I just got a stripped down 2017 JKU Rubicon with pretty much the only option was navigation but it does not have bluetooth. My sound guy said it would be better to just replace the head unit as its not that great anyway. He wants to install either a pac or maestro unit and said that I can monitor parameters through the new head unit. Since I only have the basic information center does anyone know what parameters I will be able to monitor. I would really be interested in trans temp the most. Thanks