I just followed the instructional video link above and followed what the woman in the video did to activate privacy mode. Make sure to use the USB cable extender so you can keep the USB drive within arms reach to pull out if you get pulled over. Back up the .key file to multiple computers and another USB drive just in case you lose the original USB drive with the privacy key file on it. Once it's lost, the system will not jam anything and it's non-reversible, meaning, you'll have to buy a new CPU or whole new unit, which you don't want to do.