from my limited knowledge pre 2012 require no dealer interaction. 2012 might even have started in 2011 I am not sure. You will need the 4 digit pin if the new owner installed it when he got the car or have a dealer re flash the radio.
Thanks. Wasn't blaming you or the forum, I was just clearly not the only "idiot" out there that spent hundreds of dollars on the wrong radio, because I can tell you I've received a bunch of queries on it.http://www.challengertalk.com/forums/f202/upgrading-130-430n-730n-106810/
has all the needed info.
you cant blame the form for not having the info its there you just need to make sure you find it all before you start buying or if there are questions ask before you spend kind of like building something measure 2x cut 1 time