SLK 280 (171.454) V6-3.0L (272.942) (2007)
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Transmission of electrical signals (frequency) to the "Audio unit" over 2 discrete lines
Design
The hands-free system microphone group consists of 3 microphones, but only 2 microphones are used.
Mercedes Benz Workshop Service and Repair Manuals
Cellular Phone Microphone|Service and Repair >
< GF82.70-P-4102SK Hands-Free Microphone, Location/Task|Page 13341
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