Well i have been trying for about 3 months to install nav in my 2019 ram bighorn. My truck did not have nav already in as to upgrade. After weeks of trying different modules buying a 12.1 display. Getting an LVDS cable and finally bringing in the dealer. Myself the ser mgr and 3 tects spent all morning to no avail. There is no sales code in my truck for nav and no option to add one. That info comes thru the body control module and is not installed in the 2019 rams. If anyone has any info please share.