Mazda MX-5 Miata 2004 Owner's Manual page 160

Setting procedure
1. Begin with the audio unit off and the
ignition switch is in the ACC position.
2. Press the auto memory button (
and the channel preset button 6
simultaneously for about 2 seconds
until "CODE" is displayed.
3. Again press the auto memory button
( ) and the channel preset button
6 simultaneously while "CODE" is
displayed (within 10 seconds). The
display will exhibit bars.
4. While the bars are displayed, input
your personal code number by pressing
channel preset buttons 1, 2, 3, and 4.
Press 1 for the first digit, 2 for the second,
3 for the third, and 4 for the last digit. For
example, if your number is 2547, press 1
three times, 2 six times, 3 five times, and 4
) eight times. If the display goes off while
inputting, begin from Step 1.
NOTE
We recommend that your code number
be associated with something easy to
remember. You should also file a copy
of the code numbers with your
important papers.
5. While the code number is displayed,
press the auto memory button (
and the channel preset button 6
simultaneously for about 2 seconds and
"CODE" begins to flash. After about 5
seconds, "CODE" will disappear. This
indicates the system is set.
Interior Comfort
Audio System
6-39
)