Thaddeus 
Morning, I want to use this as the brain for a Carputer but I have some questions/clarifications: 1: I want this to power on and off with ignition, is there a way to do that with this board? I'm sure I'll need a relay attached to the switched 12v that'll feed the 12v to 5v converter but where/how can I connect that to the board so it'll turn on? Also how would I turn it back off, as I'm sure just cutting the power to the board will eventually damage it? 2: I want to use a touch screen(I see the output for it) but also want to use the HDMI for the sound to the amplifier( using a HDMI to AV converter like this one: https://www.amazon.com/Tendak-Composite-Converter-Adapter-Supporting/dp/... ). My question is will the computer allow me to use both the lcd output and HDMI output? Thanks yall