Had time to evaluate the Edison 2 din and gotta say I'm pretty impressed with it this far.
I also have two of the earlier Naval type units and whilst there good, there was always a couple issues which bugged me such as having to use the Aiux mode for Tv
and the mini USB jack wouldn't charge with iPhones etc
The Erisin unit seems to have rectified all these issues with the added bonus of being able to change to units lighting to one of 4 colours ,as it's in my Zt, is already loaded with an Mg boot up logo as well.
The navigation that came with the unit (Igo primo) is good but one issue that I have not figured out as yet is the.navigation voice volume level is a little low against the radio volume when driving but there is a panel with adjustments but not used it yet.
The sound system is amazing and is a cut above any of the other units I have.
As mentioned, the unit is a little different wiring wise than the other units ( to get good radio reception you need to connect the Antenna wire to the cars powered aerial antenna) but steering wheel controls just wire straight to the cars existing steering wires as the interface is in the unit.
The best part is it's probably the cheapest 2 din out there but thus far I'm impressed!!