jtach

Can someone please tell me if 1999 GS400 Navigation is able to update or not? Is there a specific CD? What is the part # for all regions? If I can find them used or whatever, is it simple as plug and play? I-phone does the trick however, it would be nice if Navigation did that for me.

Lukas99GS

They didn't have a disc based nav until they updated it in 01 the older ones are hard drive based.

jtach

Oh no, that means no update.. Thank you very much.