@Surfy - Everything is the same for factory components and functionality (except perhaps rear seat Aux input and steering wheel track select control, which I haven't tested yet). This GROM box just runs when you select AUX on the factory Nav screen audio menu.
One thing I was happy to find out is that for 200 series this box uses the factory Mic, so I didn't have to run a second Mic and try to hide cables, etc.
One thing I was happy to find out is that for 200 series this box uses the factory Mic, so I didn't have to run a second Mic and try to hide cables, etc.