For a 1993 Jeep Wrangler YJ:
The fuse box is typically located under the hood, on the driver's side, near the firewall. It's usually a black plastic box. The fuse diagram inside the lid will show you which fuse is for the cigarette lighter and which is for the radio. They're *likely* separate fuses.
Important Note: The fuse diagram *inside* the fuse box lid is your definitive guide. There's no single guaranteed fuse number for these items across all YJs because variations exist. Look for labels like "Power Outlet" (cigarette lighter), "Radio," or similar.
For a 1993 Jeep Wrangler TJ (less likely):
If you have a very early TJ (extremely rare for a '93), the fuse box location might be slightly different. Again, check under the hood for the fuse box and consult the diagram inside the lid.
In short: Check the fuse box under the hood. The diagram inside will tell you the specific fuse location.