I am thinking about having all my car interior map lights, dome lights, step courtesy lights changed to Xenon White LEDs.

I have checked the Osram Guide but still a little bit confused about the bulb sizes I need. Can someone who has did this help me out, thanks a bunch!

 

Do you have a question? What are you confused about?

 

Check out the Sylvania bulb replacement guide.

 

that's what the osram guide he speaks of is. Osram/Sylvania