and the Command MCS-1 navigation DVD (2007.1) will only work on M-classes up to 05 and the Command MCS-2 navigation DVD (2007.1) will work on the newer M-Classes 06 and on.............As for the driver's headrest, l now know, it is the larger backrest button, which is no.1 moving up and down...But l am still stuck with the CD changer ?????

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2006 ML350