I’d this still current? The sync three in say my 2013 c Max I just got? I saw a web site which may be the one three posts above me is talking about. $1500 without nav and extra $600 with nav. Are they trustworthy? They also have an eBay store. I want to do this but I’m not totally comfortable installing it myself. I saw a YouTube video on it and it looks easy enough. But don’t know anything about a gps thing to do something with.