I bought a used 2015 a few months ago and I love it so far. We own a foreclosure cleanup company so we are on the road a lot. My truck has the backup camera but no navigation. Can I upgrade to a factory display with navigation? Or even an aftermarket with messing anything up? My Dodge dealership said they have no clue and wouldnt do it even if they knew they could. They said probably not because the display is designed for this specific truck, but I find it hard to believe I cant change the radio/display. Any input or experience would be greatly appreciated