Any ideas or direction to start?
Yes - get yourself a meter and learn how to use it.
In my book fuses are either good or they're not - "seemed" is not an option - you can check them with a meter in a matter of seconds, and the same goes for the bulbs. Look closely at the back of the fuses - there are contact points that you can reach with the meter probes, you don't even need to pull the fuse from the circuit to test it.
Headlights, radio & dome are on different fuses, in fact, each headlight has it's own fuse - if I recall correctly the radio has two power connections, one that powers the radio itself, and a second that powers the radio's memory circuits, and this last one might be the dome light circuit - but the radio will not power on unless both circuits have power.
