HONDA 2003 Civic Coupe - Owner's Manual - Manual (Page 153)

You will see the first 4-digit
number on the display for five
seconds, then the next 4-digit
number is shown for five seconds.
You will see 8-digit serial number
in total. This procedure is repeated
once again.
After you have entered the audio
system’s code number correctly, the
serial number will not be displayed.
Push the PWR/VOL knob to turn
on the audio system while
pressing the Preset 1 and 6
buttons at the same time.
Turn the ignition switch to
ACCESSORY (I) or ON (II).
When the audio system disables
itself, you can see the eight-digit
audio system serial number on the
display. To display the serial
number:
1.
2.
3.
Standard for HX, LX and EX models
in the U.S., and LX and Si models in
Canada
Audio System
Comf ort and Convenience Features
Displaying Audio System’s Serial
Number
150
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