Reading this has struck me the wrooong way...
The way I see it, if you don't know how to do it, you have 2 choices:
a) learn how to do it
I don't know what kind of college you go to, but if you're expecting someone to hand you everything you're supposed to learn, you are in for a rude awakening when you get further into college.
b) don't do it at all!
There's no one saying that you have to have a computer in your car. If you're not doing it right, you're putting yourself in danger and risking your car being destroyed. If you want to play russian roulette with a poor wiring job, I hope you at least invest your time and money in signing up for a good insurance plan and a call to AAA.
To be honest, you sound like a spoiled little brat. The guys posting in this thread are trying to look out for you and help you get a basic understanding of what you're doing so that you can troubleshoot when there are problems (and believe me, there are always problems). Get off your *** and don't expect things to be handed to you!
I look forward to either seeing some intelligent questions that haven proven you've researched this hobby at all or a pity post/news article in a few months about your car burning to ashes on the side of the road. Either way, good luck.