radio mute wire for car kit - Mercedes-Benz Forum

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post #1 of 4 (permalink) Old 05-30-2005, 01:12 PM Thread Starter
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radio mute wire for car kit

I've just installed a mobile telephone kit in a 2003 E class 270 CDI. I have the radio removed but am not sure which wire at the back of the radio to connect to the mute wire from the kit. Can onyone help? Thanks
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post #2 of 4 (permalink) Old 07-02-2008, 10:01 PM
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You should find a yellow possible with a black trace going through it. But i found it not uncommon for this wire not to work. If that happens then you have to locate the amp and grab it there.
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post #3 of 4 (permalink) Old 07-02-2008, 10:55 PM
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Welcome to the forum.

If your car is a W211 new E with MOST audio systems, then this thread may help.

The Mute bus connector for W211 is near the driver side door silt. Ultimately, the MB dealer shop complained that I tap power from the OCP. So I had to tap power elsewhere.

Last edited by CalifSLK; 07-02-2008 at 11:06 PM.
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post #4 of 4 (permalink) Old 07-03-2008, 12:59 AM
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I believe it depends if you have an AGW or not, the mute wire at the HU should work fine on an Audio 20 CD but an Audio 20CC would not have any. Others may have a wire that is not connected to the AGW mute wire where it should if the car has one.

The mute signal is an open collector type, you can connect to it even if other devices in the car were already connected.
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