Been thinking for some time about adding DAB to my 216. There is no official update retro from MB for this, so an after market it has to be. I would have rather had a direct input via line in rather than modulated FM. I can add the Aux line in and video line in to my NGT3 comand, but the problem is that the video will blank once the car is on the move, the only one made is remote operated so not that easy to change stations while on the move. If I did take the modulated FM route, then there is no way that I can use the line in at the same time as the radio If I choose one with a line out and that has a display in the control unit there is nowhere I can place the control with station display in the CL where it can be seen unless the control goes up in the A rail at the top, and that is not so easy either.