I recently retro-fitted my 06 ML320 CDI with a NTG2 Navi system I bought on Ebay from Europe. The unit works fine and with the correct Australian DVD does everything except find satellites. It still shows its last fix as somewhere in Germany and the time in Nav Service Mode (Nav + 5) as the time in Europe even though the time in normal mode is correct for my location in Australia. The aerial is directly plugged to the unit and was supplied new with the unit. I know the aerial is a possible suspect but do recall when I purchased a Garmin GPS from the US that I could not find satellites in Australia until I told it where it was. The unit has been coded by my local Merc dealer but as I did not have the disk at that stage I dont think they did much checking. Any suggestions?