I thought I had the exact same problem. That's how I found these posts. Then I looked more closely at the faceplate and my stereo is actually a KD-G300. G as in George, not 6 and is 666. Anyway, the JVC site doesn't have a manual for the 6300, but there is one for the G300. Maybe it will help, or maybe you read it wrong like I did. http://books.jvcservice.com/booklist.asp?Model=KD-G300J And it tells you how to set the clock! Not sure, but I hope this helps.

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