i followed this guide(oh i got avic f90bt)
*Your parking brake wire (light green) has to be grounded. You can ground it to the black wire coming off the black power harness that connects to your stock radio ground connection, the cigarette lighter black ground, the vehicle chassis, etc.
*I updated my Avic to 2.0 firmware, its up to you if you want to do this because all you're trying to do is replace the "data.zip" file. Or if you don't want to upgrade you can follow steps 1-4,6 to access your Avic and copy/paste the original file from your Avic to SD card, open it up on your computer,