Hello, newbie. Just bought a used avic-x930bt. Works well, looks great, no issues at all right now. I have been reading and there seems to be updates I can install and it looks like the previous owner has not done it yet. It's still running on firmware 3.000. Can some one give me the pros and cons? What's the latest firmware for this unit? I want to do this firmware update but "if it's not broken, don't fix it" keeps popping into my mind. Any suggestions would be appreciated, thanks. Oh BTW, the deck is from US and I am in Canada if that make a difference.