For those with Toyota, Nissan, Subaru & Mitsubishi Audio Units showing the error message "Please insert correct map disc" after disconnecting battery their is a solution. Call/Email with the model number of your audio unit and we shall take it from there.. Email: mapdiscfix@gmail.com Phone: 0726 557 460 (Jay) Website: correctmapdiscfix.blogspot.com PS: The solution doesn't install Kenyan maps on your vehicle but rather unlocks your display for use.