i have a 2000 ml 320. behind the radio i only have a cassette deck and when i push the navi button nothing happens. i have a 6 disc changer in the trunk. what do i need to get the navigation to work? i appreciate it ahead of time
There is some question as to antenna connection for the GPS to work. I have determine on my 2001 ML I need to add a splitter underneath the pass seat where the tele-aid unit is located, to get the antenna split and connected to the cable that runs up behind the MCS.
Does your 2000 have tele-aid? Do you have the small black antenna on the roof near the rear hatch?
Try some searching to see if anyone did the exact swap in a 2000. Seems for 2002 and newer, the antenna situation is resolved (meaning no work to do) just pull the MCS, add the navi drive to it, re-install and you are all set.
I am not sure the dealers are too open to giving advice, but if you have a good service department at your local dealer, you might ask them what is required, specifically the antenna piece.
I'm not sure if the antenna has anything to do with tele aid. My '00 doesn't have tele aid and has nav. It does indeed have an antenna though. In fact, I'm not sure any of the '00 ML's had tele aid. Although I don't know if all ML's of that era were prewired for GPS.
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