can you add an external mcrophone to the tomtom 520?

There is no external microphone available. The internal microphone is currently being upgraded through software updates. You should be in constant touch throught TomTomHOME and you will receive the update automatically. The hardware works great with my Nokia but a lot of Nokia users will have to await the update. This is from the official team at Nokia.

Alan.
January 2008

check this out - I have the same problem - http://www.expansys.com/ft.aspx?k=100483

good luck

Jim Ewart
January 2008