I apologize before hand if this has been answered somewhere already but I have a 2011 Journey LUX that has the 8.4N. My question is, are the 8.4N units from the 2013 to present different than the 2011-12 units? It would be nice to have the Sirius Traffic and also looks like the Garmin maps are better from 2013 to present. I was just curious if I got a newer 8.4N if it will work in my 2011. I found a site that sells the OEM 8.4N but according to them 2011 to present are all the same units so I wasn't sure if it is a different firmware or if there is actually a difference in the unit itself.
Thanks for any advice you can give me.
