To find it:
1. Locate the underhood fuse box: This is usually a black plastic box near the battery. Your owner's manual will show you exactly where it's located.
2. Open the fuse box: It might have a hinged lid or require you to remove a cover.
3. Consult the fuse box diagram: Inside the fuse box lid or on the fuse box itself there's a diagram showing which fuse corresponds to which circuit. Look for labels like "Power Outlet," "Cigarette Lighter," "Accessory Power," or similar. The amperage rating will also be listed.
Important Note: If you can't find it using the diagram, your owner's manual is your best resource. The manual should have a detailed fuse diagram and location information specific to your vehicle's options. If you don't have the manual, you can often find a digital copy online by searching for "[Year] Lincoln Town Car owner's manual" on a search engine.