Is there a fuse or relay that controls the radio, dome light, trunk light, under hood light and AC in 1990 Plymouth acclaim? If so where is it located?

On your Accliam, the fuse panel is located under the instrument panel to the left of the steering column.
Use a non-powered test light to check the fuses. If you can't be sure which fuse to test, you could check them all but some are powered only during certain conditions. Check your owner's manual for exact fuse location.

I knew where the fuse panel was but I thought there might be another fuse somewhere else as so many things were not working. Even though the different things each have their own fuse it was the fuse marked dome light that had everything not working. Replaced it and everything is now working. Thanks