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Hi, I have 2001 E320 CDI, just changed the battery and i put in the code but as soon as i finish entering the code the radio displays "Phone" and stays there, no matter what i press it does not go away:mad:, the audio thinks the phone is being used and is muted. but i have no phone connected and I have tried discconecting the radio/battery but still no luck. I have the right code as it goes into phone mode. The problem is bringing it back to normal mode so i can use it.

Can anyone help please? :confused:

its Audio 30 :
 

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222.132 & 221.122 & 213.050 & 906.633
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The phone mute line is pulled down "by someone". Check it, you can disconnect it temporarily if necessary.

Where are you? Do you have a phone kit or Tele-Aid in the car?
 
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