1993 Honda not getting 12V switched power

If you mean the RADIO fuse in the fuse box in the upper left hand corner of the engine bay under the hood, that was the fuse I replaced.

You are an absolute genius I swear. I talked to 5 friends, went to 3 different forums, called my mechanic, and called the technical support guy for the car audio company I bought the unit from. None of them even suggested checking the other fuse box. Other people in forums recited horror stories about drilling through the firewall to route a switched cable to their stereo or cutting their SRS harnesses to tap into a switched power source. After you told me that the other fuse box might regulate the swtiched power I pulled up the fuse diagram and, sure enough, fuse 18 controls the stereo and the cigarette lighter, which was also switched power. Opened up my fuse box an lo-and-behold, the fuse was absolutely decimated. Replaced it, hooked up the old multimeter, reading 12.3V

Thank you SO much tcss for providing me with common sense advice that saved me from countless frustrations and expenditures. I owe you a beer haha.