Just letting you know that Australian Maps are apparently now available for Fiat Ducato vehicles. You will need to call first and arrange a booking as Fiat state that it must be carried out by Fiat service so I called 2 Fiat service locations and they both indicated the maps are now available. If your vehicle is out of warranty I suggest you call Fiat and ask what happens for your specific situation.
For Adelaide Ducato Motorhome owners: In terms of waiting for the service at the Salisbury park facility, it is abysmal to park there and the whole place is NOT setup for larger motorhomes (we had to move ours a couple of times recently when taking the vehicle there) so we literally would rather go interstate for any Fiat work whenever possible.