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2. Installation instructions With the AC 5120 speaker switchbox, you get the possibility of being able to mute the feedback of your car radio / CD player etc. and to transfer the voice output of your conversation partner during a tele- phone call to your vehicle’s speakers.
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Audio switchbox to the power supply socket of your hands-free kit. Now disconnect the (a) and/or the (b) loudspeaker connector from the speaker socket on the radio at the back. Connect this connector with the suitable socket (3) on the AC 5120. Now connect the plug (4) with the radio.
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The two ‘Phone-In’ cables are marked accordingly and must be plugged into the appropriate con- nections on the radio (blue, green or yellow). In this regard, please refer to the instructions concerning the connection configuration of your car radio in your car radio handbook. In lots of radios, the volume level (feedback of your conversation partner) can be controlled via the phone input and the selection of the loudspeaker.
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Configuration II If the assignment of pin 7 of the ISO plug is connected to the ignition, and pin 4 is connected to the DC power supply, the connection of the cables should look like the connection presented on the dra- wing below.
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