If you change the base map, you gotta connect the green connectors under the steering wheel. Once you connect those greens, turn the key on. Connect the AP with the OBD II port, and select base map. Turn all accessories off(interior/exterior light, radio), and select change base map. Once your base map has been flashed, take the AP out of the port and disconnect the green connectors. After that, change your realtime map to stage 2. That should be it.