I was checking a order status and I navigated trough accesories web page under Audio/video section and now both radio models are availables (very expensives IMO) and installation guides.
I reviewed the installation guide for 730N RHR unit and it's not easy, the main issue is the set up and configuration with ECU, I figure out that should be installed by Dealer
By the way, the diference in price is only $50 between 430N RHB and 730N RHR, but if you want upgrade from 430N to 730N need the internal cable and housing for ipod conection. (I didn't see it)
Here is the link