Just purchased an iphone 3g and I find that when I call someone, no one can hear me when I use the bluetooth function in the car. I didn't have this problem when using my Blackberry. Any adjustments available in the car so I don't have to shout when speaking in the car to people I have called?
Thanks.
Had this problem and with others managed to find the solution.
Sit in car with engine off, foot off brake and press ignition button twice.
Hold down info button and turn headlight switch quickly from off to on and back several times.
After a couple of times 3-4 you will go into a service mode
Select microphone and then use arrows to go from 0 to 2
Then exit screen by foot on brake and start car and test.
I have done several some work well on 2 and unfortunately some needed 4 or even 5 to be clearly heard.
This appears only to be a problem with the 3g
It will proably be fixed in system for 3.0 in the early summer.
Good luck
Tim from Delta