i think all the LEDs in that link you posted come with built-in resistors. So just drill holes and tap into a power source, like the accessory outlet or the light in the cubbyhole. I have two of the 276-272 LEDs installed, one for each cupholder. They don't put out much light though. So if you're looking for something that glows brightly like in Scion's pics of their optional LED kit, you'll definately need more than 2