i went to the science store down the block to buy some LEDs and they are all 3 volts or lower. I was planning on changing the whole interior look from green to red or blue, but the guy was telling me that most of the leds in the car are 12volts or so and i would probably blow the bulbs. so i decided to hold off and ask all u guys, considering, u r the experts!!

Youll need resistors on just about all of your LEDs. I havent found any stock wires in my car that havent needed one.

http://www.oznium.com/led-resistor-calculator

all of the places in the car where there are led's already, ie the a/c unit and window switch you dont need a resistor for its already set to a proper volage for leds, as far as other bulbs go to superlumination.com and but them from there, They sell them already installed in the proper fittings for your stock bulbs. They're a little pricey but are definitely worth saving yourself a headache.