i have a mk3 ford mondeo ghia with a sony 6cd system that isn't working, the display on the unit is showing "phone", and occasionally it will come on but only and play music for a few seconds and then go back to display "phone", do you have any ideas what the problem is?

andyd, January 2011

PHONE MUTE CONTROL
• Where available, press the PHONE
button to mute your audio unit.
• Press PHONE again to unmute

xxxx, January 2011