change GPS system to new zealand on AS300

[dualchart]

hey all just a question.

does anyone know or who would i need to talk to , for changing the Factory GPS system from japan to New zealand settings..


Model: Toyota Altezza AS300

any help would be great

thanks

[dualchart]

ive done some searching and found its more of a hastle then its worth, need boot loaders and so on.. so might just get a off the shelf unit and modify it to sit in bay..

thanks anyways :d