I n s t a l l a t i o nCopyright © 2007 Nokia. All rights reserved. 15Take care to mount the microphone so that it is not exposed to airstreams from the vents. Do not lay the microphone cable in the heating,ventilation or AC system. Use the double-sided adhesive tape suppliedto fix the microphone as this will prevent noise from the car body beingtransmitted into the interior.Insert the plug into the "MIC" socket in the handsfree unit and turn itclockwise to lock it firmly.Note: Use of any other microphone than the microphone MP-2supplied with the Advanced Car Kit smay impact thetransmission quality.Cable setThe wires making up the cable harness are to be connected as per thewiring diagram.• Connect the black wire to the vehicle ground (GND).• Connect the yellow wire to the MUTE connection of the car radio.If your car radio does not have a mute connection, this line mayremain unconnected. In this case, your car radio will not be mutedautomatically during a call.An additional relay can be used to enable the car radio to be muted.When a call is accepted, the Advanced Car Kit switches the yellowline (MUTE) to ground, muting the car radio. When the call is ended,the yellow line is separated from ground and the car radio isunmuted.• Connect the blue wire to the IGNS line of the car using the 1A fusesupplied.