Microphone
In noisy car environments, you can use an optional external microphone
(such as Nokia MP-2) to improve the audio quality, instead of the built-
in one. To use an external microphone, connect the microphone to the
respective connector on the junction box.
Select the mounting location of the microphone carefully, to increase
the quality of voice transmission.
The best place to mount the microphone is close to the rear view mirror.
Mount the microphone so that it points towards the driver’s mouth and
is at least 1 metre (3 feet) from the car kit speaker, to avoid audio
feedback.
Make sure the microphone cable reaches to the junction box.
Mount the microphone so that it is not exposed to air streams from the
vents. Do not place the microphone cable in the heating, ventilation, or
air-conditioning system. Use the supplied double-sided adhesive tape to
mount the microphone.
Insert the microphone plug into the microphone connector on the
junction box, and to lock it in place, turn the plug clockwise.