Very good unit if it is not possible or will replace the existing vehicle radio.
Can download different apps for maps / navigation, weather and other services.
Built-in handsfree (main reason I bought had a single predecessor earlier), the ability to play music via bluetooth, cable, usb, 3.5 mm jack (headphone jack), SD card and probably even more. iPhone works fine against this and you can control the music from the screen.
Built-in 4x46w amplifier with equalizer that gives a lot and good sound with lots of adjustability.
I have not tried myself, but it should be possible to get both DAB (USB adapter instance. Dension) and web camera (eg. The camera) to work on this.
I use Waze for navigation on this.