How to change the language in a Japanese Nissan DVD navigation system to English?

I have recently purchased a Nissan Primera 2001 Station Wagon W25X, Japanese import and the navigation system is all in Japanese, is there any way to change it to an English based system?|||You'll need to contact Zenrin Company. Call Your dealership for address info then contact Zenrin and pay 145 dollars US the DVDs that information and language on it ti install your DVD player. And you will get new maps too. I think we're up to version 7.2 now. English DVD contains French and oddly enough no Spanish.