@Benny,
On a related note, keep an eye on the following thread since there seems to be a lot of interest (including me) in a proper retrofit of the 8.4AN radio for the 2013 - 2015 trucks which is pricey.
DIY 5.0 to 8.4 Navigation upgrade
DIY 5.0 to 8.4 Navigation upgrade - DODGE RAM FORUM - Dodge Truck Forums
Once the differences (parts lists) are nailed down for coming from the 4 speed vs 7 speed manual HVAC controls it should be easy to put together a proper parts mod package for the two versions. (See post 12 for the 7 speed fan)
Sent from my "Up All Night Sleep All Day" Nexus 5!