New to this site and saw some cool things that can be done with the F900Bt. First off, what is the newest update for this unit? also, when installing I'm pretty sure the usb cable got pulled to hard or something and is loose and wont work. It never worked before with my Iphone but I could plug a usb drive in there. Any help would be appreciated. I just want to get it all up to date... (maps and firmware)