Please find coverage details for the Navman 450D :-

Detailed coverage in Europe

Andorra, Austria, Belgium, Denmark, Finland, France, Germany, Gibraltar, Great Britain, Italy, Ireland, Lichtenstein, Luxembourg, Malta, Monaco, The Netherlands, Norway, Portugal, San Marino, Spain, Sweden, Switzerland, Vatican

The Navman 450D became available to Halfords earlier this year.

The Navman M450D is exclusively packed for Halfords with Home Chager included.

Traffic updates are not available on the Navman 450D.

The Navman maps offer detailed coverage in W. Europe.

Please contact your local Halford store who may be able to help with a Windscreen mount.
Otherwise please visit Mio at :-
http://eu.mio.com/en_gb/navman-m400...

The Navman can be hard wired (fitting costs apply) or just pluged into the car 12v supply (cigarette lighter socket).

Yes, although the DVD with the Sat Nav doesn't contain the Australian maps, so you will
need to download those from the Navman website. A link is here:
http://download.mio.com/AU/0904-420...

To activate the maps you will need a key, available from Navman online
store, here:
http://eu.mio.com/shop/product_info...

For UK & Ire products there is space on the device to add Australian maps.
For models with WEU maps preloaded, you'll need to remove some of these
maps to make space for all of Australia on the internal memory.

No the Navman M450D does not have an Earphone jack.

Yes, register your device with Mio/Navman and any available updates will be offered to you.