If you have your Owner's Manual, check it, it should have instructions. The manual for the 2005 model sez:
"Replacing license plate lamp bulbs
1. Make sure the headlamp control
is in the OFF position.
2. Insert a flathead screwdriver in
the recess and pry out the complete
3. Pull the bulb straight out."
It is an easy yet tricky thing to do. Insert a flathead screwdriver in the recess on the right and then push the lens to the left until you feel you can pry it out. Follow the same exact directions for both lights.