Hello ... I am Italian, first of all I'm sorry for my English is not perfect, and I wanted to congratulate you for the wonderful site, very helpful and always updated.
I would like to help if possible .. I have the avic F900 and I want to upgrade the software, I have version 2 and I wanted to bring it to 3. From the various topics I see are different versions and do not know what to update and then follow it as a guide, are not as practical as the thing I've ever done, but with a good guide I learn fast Can you help me in update? Thanks in advance.