Can anyone help please? Just fitted new APS30 unit version BE 4716 with supplied Mercedes GPS Ariel. Radio works fine, went to load CD softwear, version 7, pressed Nav button, it requested to insert navigation CD and also said to the right of the main instruction "GPS Modul Error". The softwear load started and "upgraded Radio" and then went to continue the installation no problem. The bar 0 to 100%, started and stopped at about 40% of the way through. I left it an hour nothing further happened. I tried a couple of other times having disconnected it first and it stopped in the same place. There were no installation instructions with the unit, though it all came in a sealed Mercedes box. All help gratefully received and if anyone has some installation instructions, or the key combination to reset the unit or advice about "GPS Modul Error", then that would be a great help, thank you. Regards Richard
