Thanks Spyder....Avic weak point
is, imho, being unable to play cd/mp3/etc etc without ejecting the nav DVD. In this mode it relies on its 64mb memory, does not display POIs and rerouting on long distances is not possible. Then a separate nav unit like in the Carminat (or other Avic models) would be better.
As for the code search, I stumbled upon a 18-pages long thread on the Carminat TMC and post code search. Basically they discuss about the DVD to upgrade all the Carminat functions.
Hope this can help