i have a 2002 ml 270cdi (facelift) that came with the audio 10 single cd player. i have just aquired the comand 2 headset a210 820 51 89 (from old e class)and fitted it. i have ordered the underdash aerial 203 820 09 75 but have been advised that as the speed (canbus?) is not compatable it will not function. currenly no autodimming works. i have it connected via the big plug and audio cd/radio work fine. what else do i need to get it working or will it just not fit, HELP!