Noisy Generator
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1996 Saturn SW2, 1996 Saturn SW1, 1996 Saturn SL2, 1996 Saturn SL1, and 1996 Saturn SL. However, it is still accessible from the selected car via links, so may be relevant.
Check for loose drive belt. Check for loose generator mounting bolts. Check generator electrical connectors. If belt, mounting bolts and connectors are okay, replace generator.