It is plug and play if you buy a BMW tuner - just swop the two and it should work. But be warned - its not as good as the analogue was in the car, if the signal isn't perfect you see.....expensive fuzz! It makes a difference where you park - even just a few metres - and its useless "on the move" if you have it enabled for kids / passenger to watch in the rear. The BMW tuners are around £600 or more and of course, everyone wants one right now with the switch over

OK cheers for that, i dont think i'll bother. The analogue one was a bit pants and had to be retuned depending where i was.