Thread: Powering a datalux screen from atx psu

Hi I have a datalux 10.5 lcd touchscreen i just picked up off of ebay. I was wondering if you had any input on powering it. it takes a 12volt 3amp adaptor. What i had in mind was i got an idea of powering it off of one of my 4 pin psu cords (like the kind that goes to the hd). I wanted to pick that because it will not spike when i start the car and keep it running at a constant 12 volts. My question is to make the adaptor running from my computer to the screen is going to be about 10 feet. should i put a 5 amp fuse in there just in case and should i put anything with the power cords wrapping around it so it does not leave much interferance and what gauge wire should I use? I am new that this so please bare with me and thanks again for helping