Why do the rear radio speakers and the trunk light not work in your Saturn 1999?

The non-functioning rear radio speakers and trunk light in your 1999 Saturn could be due to several reasons. Common issues include blown fuses, damaged wiring, or faulty connections. It's also possible that the radio itself may have a malfunction affecting the speakers. Checking the fuse box and inspecting the wiring for any visible damage would be a good starting point for troubleshooting.