set/adjust the clock for Sony Xplod XM-554ZR Car Audio Amplifier

Problem with Sony Xplod XM-554ZR Car Audio Amplifier

How do i set/adjust the clock for my Sony Xplod car stereo?

100dB+
changer control CDX-GT31W
Drives - s

Http://audio.manualsonline.com/manuals/mfg/sony/cdxgt310_cdxgt31w_1.html
click on get manual......the clock set instructions are on page 5