Does anyone know the bulb # for the lights in the doors?

194 for the 99-02 for sure. I would bet it is the same on the 03.

194 along with about 90% of the other ones

Yes, it's a 194.
Question- Did you actually get the cover off without breaking the plastic tabs that hold it on?
The two times I've tried, the tab on the lens broke because they seemed dry and brittle, and I had to buy the entire assembly for about $16.

If some of you are having a problem with these bulbs going out often, you might consider switching to a 193 instead...The 193 is dimensionally the same, but it takes vibration better...:)

I was thinking of switching to LED's. But I would lossen the door panel instead so I don't break the tabs.