“Clock Feature When not using the unit why does the clock not show the time. If you go to the clock it shows the time for about 10 seconds and the display reverts to Aux. I cannot find any instruction as to how to overcome this problem. I understand that the display shows the station when using the radio, or the display when using the Ipod or Cd portions, but do not understand why the clock is not displayed when not in use. The unit is turned on.”