Hello. First of all: have the sufu already tortured. Build just m laptop to the car Pc. Question about the power supply in the car. Wanted to connect the laptop to an IVS stabilized universal switching power supply NTS 120 Watt, DC/DC (6000 mA) for notebooks to then use this PC via a touch TFT in the amature board. However, my concerns are because I have read that there are more problems. Beeping in the phone or flickering of the screen. Did the power supply want to be provided with a switch and either drive up the recher with the hand or in the hope to give the command in the bios that it automatically drives up when power is supplied. (hope that goes despite battery…but computer realizes if power is on from the socket or from the battery?!!!!?) Are my considerations so correct? Would this work or is there also an intelligent power supply for the laptop, which allows the laptop to drive up when ignition? Hope I can jmd help. MFGG.