Hi there,
From Page 6 of the CDM-9801 manual from Alpine's site:
http://vault.alpine-usa.com/products/documents/OM%20CDM-9801.PDF------------------------------------------------
1. In the Clock priority mode, press and hold the
DISP button for at least 3 seconds while the
time is displayed. The time indication will blink
2. Turn the Rotary encoder to adjust the hours
while the time indication is blinking.
3. When the hour has been adjusted, press the
Rotary encoder.
4. Turn the Rotary encoder to adjust the minutes
while the time indication is blinking. The time is
automatically set 5 seconds after the minute
adjustment. The time can also be manually set by
pressing the Rotary encoder.
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I hope that helps.
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