However, here's some general guidance:
* Horn Relay: Relays are often found in fuse boxes, usually located under the hood (engine compartment) or inside the passenger compartment (often under the dashboard). The under-hood fuse box is a more likely location for the horn relay. Look for a fuse box diagram to identify the relay. It's often labeled or can be identified by tracing the horn wiring.
* Horn Switch: The horn switch is typically located on the steering wheel itself. It's usually a small button or ring in the center of the steering wheel. This is the most likely place for the switch; it's not generally a separate component like the relay.
To locate them precisely:
1. Consult your owner's manual: This is the best resource. The diagrams should show the locations of fuses, relays, and other components.
2. Use a repair manual: A Haynes or Chilton repair manual specific to your 2000 Buick Regal will provide detailed diagrams and instructions.
3. Online forums: Search online forums dedicated to Buick Regals (e.g., Buick forums, car repair forums) – someone might have already posted about the location on a similar model year.
Remember to be careful when working with electrical components. Always disconnect the negative battery terminal before working on any electrical system.
