Has anyone tried to do this, I have a 2013 Ram SLT that has what I think is the U connect 3. 5 or is it the 5. 0 Sat radio. I would like to upgrade it to the one with Navigation and maybe even the back trailer hitch cam. The dealer wasn't sure thought that might be just a re program and cam install. But true to dealer fashion they can't come up with an answer. In the good old days all ya had to do was change out the radio head to get diff features... Thanks in advance.