Very simple, just be patient and smart about it and you'll get it done in a couple minutes.
The bulbs that will fit in these sockets are 3175 "festoon" - Go here
for links to the best sites to find them on.
I only took pictures of the back seats, but the front map lights are the exact same thing.
**For the purpose of the pictures, I removed the business card I was using to prevent any scrapes/damage on the plastic surrounding the lens caps.**
In regards to that, take a business card and use it so your screwdriver doesn't touch the beige plastic housings - this greatly helps avoiding putting little pressure dents on the housings.
*For all intents and purposes, all of these pictures the BOTTOM is the front of the car.
- Start on the outside, forward-most (closest to front of car) side of the plastic covers.
- Push the clear plastic cover Inward and slightly down. There is a "U" shaped clip that holds it in to place - seen below:
- Do the same thing from the other side and the cap should basically fall out.
The Front and Rear lights, although the same bulb, have different housings. The Front housings are meant to hold SLIGHTLY smaller bulbs (maybe 29mm instead of 31mm 3175) but the 3175 still fit fine. The rears have no fit problems whatsoever.
Repeat this in the reverse order and you're good to go!