okay first off i have one of those mini computers lying around for a while which no one uses wid a 20 gb hard drive. so i thought why not connect it to my car. So basically what i thot of was i have the cpu which i can put in the glove compartment (ya its that small) and i can run an AUX wire from my cpu to the head unit. i have a touch pad and a small numberpadless keyboard too. the only problem is the monitor. it is very easy and 20 gigs of music with internet on your car is not bad at all. any suggestions of what i can use for a monitor??? since all ill need for this to buy is a power converter so im not willing to put more than 50 bucks on it so just the monitor anyone have any suggestions i just want a mini like 7 inch monitor. any suggestions at all?

EDIT: Im a newb when it comes to cars but its only an idea i wanna try out