i just installed on in a 2000 ml, all we had to buy was the drive for the disc, outer antenna and the antenna interface mercedes sells a kit we bought with the drive, i can get you numbers if you want. in my case all the wiring was there, just had to buy and install the components. if you model has the mcs display all should be there. the das mounted unit was for the older ML's that had the smaller standard size Bose radio.
Ray
mercedessd@cox.net