i put the putco kit in our 2014 4 door. i dont know the size of the bulb. and i never seen anyone change the ones in the rear view mirror. i'm subbed also. curious on those.
Where did you get the putco kit?
http://www.northridge4x4.com/putco-jk-2011-15-4-door-led-dome-light-replacement-kit-980295?
they went on easy, i asked about their store brand led kit that i put on my 2012 and they said they wouldn't work on the 14. how true this was i don't know. but really happy with the putco kit
To change the map lights out would take some work, they are soldered in. It's not to say you couldn't take apart the mirror and solder in some brighter LED's, but it's not as simple as swapping a bulb like in the dome lights.
Or you could do what this guy did....
http://youtu.be/jFctgel48yM
Disclaimer, I have nothing to do with the YouTube link, just something I found as a search result.