1992 Honda Accord Owner's Manual - Page 81
1992 Honda Accord Manual
Page 81 highlights
Theft Protection (US: EX, Canada: EX-R) Your stereo sound system is protected by a code number. The system immediately disables itself whenever the radio/player unit is disconnected from the battery. To make it work again, you must enter a five-digit code with the station Preset buttons. Your dealer should have given you t w o copies of your audio system's code number with your car. Keep one of these copies at home, and the other in your wallet or a concealed place in the car. If your car's battery is disconnected or goes dead, the audio system will disable itself. The next time you turn on the radio you will see "Code" in the frequency display. Use the Preset buttons to enter the five-digit code. If entered correctly, the radio will start to play. You will then have to store your favorite stations in the Preset buttons. Your original settings were lost when power was disconnected.