I have a Japanese import Toyota Ipsum which the battery died recently, and now the audio system is crippled with a "please insert correct map disc" on the screen. The audio model is an NDDN-W58 and some googling has revealed some dodgy overseas websites with various files to download and burn to CD. I tried this one but to no avail:

http://www.pakwheels.com/forums/car-entertainment-ice/223037-insert-map-disc-free-solution-toyota-dvd-nddn-w54-w55-w56-w58

Anyone know where I can get a copy of the 'correct map disc' ? Or any ideas?

Many thanks in advance.