sup bro,
to further answer ur question on wiring... first what you need to do is ask yourself is: "when do I want these lights to come on?" Then think... "what other lights come on at the same time?"
For example if u wanted your LED's to come on when u open your door, notice that your courtesy light (light on the lower corner of the door panel) also comes on when your door opens. What you need to do is find the wire that powers those courtesy lights, and tap into the electricity that powers those lights... so that your LEDs will receive power whenever your courtesy lights comes on.
Finding the wire that powers these lights, or any other unit in your car, can be tricky, but remember that all of these wires meet at a common place in your car- the fuse box.
If you can get a hold of a manual... it will tell u exactly which part of the car each one of the fuses controls, when u find the courtesy light wire, or any other unit, just tap into that wire.
If you are not comfortable with tapping and splicing you can get what are called posi-tap connectors to make the job alittle easier.
But as previously stated, if your THIS unsure about the electrical system in your car it would be a really good idea to let someone do it who is familiar with these components- electrical work is pretty costly for any car.