84 s, no dome lights, no power to radio, no turn signals
 

Fuses are good, bulbs seem fine but again, no interior lights/hazards/radio/clock.

any ideas where to look next? The fuses in the interior check out via test light.

Have you checked the fusible links under the hood? I can't remember if any of them impact your particular problem.

The other thing maybe a ground has rotted off or broken.