Thanks for the reply garrettoomey. I'll just use my Z1 OEM drive for now.
I successfully updated from my Z1 to the Z3 with this thread. I used my Windows 7 Desktop and was pretty simple to upgrade.
The only issue I have sometimes is when I'm driving with my navigation it sometimes doesn't show me on the right street but autocorrects itself after driving for a little bit. Any ideas what would cause that?