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BMW E31 8 Series 1990-1994 (840i/Ci, 850i/Ci/CSi) BMW E31 840Ci Sport (1999) - Factory fitted phone


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Odessa

Posts: 4
Registered: 08/19/07
BMW E31 840Ci Sport (1999) - Factory fitted phone
Posted: May 20, 2008 7:23 PM
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The factory fitted phone works fine, except on hands-free mode. I can hear a caller perfectly but the caller hears a loud 'humming' noise coming from me.

If I lift the phone from the cradle and I can have a conversation without any interference.

I think the hands-free microphone may be causing the problem.

Has anyone come across this before or can anyone offer any suggestions.

Cheers.

Shib.

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