mine too.
212 is a different bulb style than the 194. 194 is a wedge type bulb. 212 is a festoon type bulb.
you will need to remove the A pillars, B pillars, C pillars, all three "oh $hit handles (the back two will need to come out to replace the rear bulbs), and both of the visors. you may also want to take part of the rear seat out (at least the sides) to make it easier to take out the C pillar
i didnt want to run the risk of of creasing the headliner or damaging any clips, so i just took it down, all of 30 mins to take it apart, swap bulb and put it back together.
I just done all my LED's in my car. I made a mistake and got 212's for the Map lights so I am going to go to a auto store and try to get the 194's. The one bulb ive had a big issue getting to is the License plate lights any one have knowledge on this please share. BTW ill post some pictures soon.