I am having multiple problems with my '94 Sentra’s interior electrical. The clock, radio, interior light do not work. Also, the automatic seatbelts only work when the car is running.
You have, of course, checked the fuses?
I checked all the fuses I thought relevant, but could not find a broken one. Is there any that you think I might have overlooked?
There should be a fuse list in your owners manual. Find the fuse that the radio is wired to & see what else is wired to the same fuse.
If everything that is wired to that fuse is not working, you need to check the fuse.
Just to add on, this car should have two fuse blocks, one under the dashboard and the other under the hood.