Okay well i just picked up a ps2 and I am looking at some visor screens (waiting for payday) I need to know something about power inverters. Most of them you can plug into the cigarette lighter. This is unacceptable in my setup. Can i just splice the wires from the plug on the inverter into the wires for the cigarette lighter? That way the inverter will only be on when i turn the key. Or is it going to be more complex?