All adds to the OEM unit, sits between the two inputs for the touch screen, which allows touch input and communications/power. So you unplug the two cable bundles from the screen, plug them into the new unit, and use the included cables to plug into the screen.
The only loss I've found so far, is the reversing camera won't interrupt the android screen while it's turned on. If you get a call on your phone, it will interrupt the audio as it's working through the car system, but it won't pause/stop what you're listening to.
I'd prefer to mirror my phone screen to the car, but as far as I've seen that's not simple/cheap retrofit on pre MY15(16?) models.
The only loss I've found so far, is the reversing camera won't interrupt the android screen while it's turned on. If you get a call on your phone, it will interrupt the audio as it's working through the car system, but it won't pause/stop what you're listening to.
I'd prefer to mirror my phone screen to the car, but as far as I've seen that's not simple/cheap retrofit on pre MY15(16?) models.