interior lights

This may be the dumbest thing I’ve ever asked. We are replacing the interior lights in our 2010 JKU. It suddenly dawned on me that the only lights that illuminate in the interior are the dome, instrument cluster, and radio. I cannot recall what items even lit up in the first place! I know the...

How do I mount the dome lights in this thing? Am I missing a part or do I have the wrong bulbs. Can someone show me a pic of theirs?