Using this product is quite simple. First, connect the device to your truck using the HDMI - style plug. Then, power it on and you can start navigating through the one - touch easy menu. You can choose different power levels according to your driving needs. Just remember, if you want to use Level 6, you'll need a hot unlock. As for maintenance, keep the device clean and avoid exposing it to extreme temperatures. If there are any issues with the display or the functions, try restarting the device. Regularly check the connections to make sure they are secure.