Hi newbie to forums hope im in the right place.
I bought a Sony mex-bt3900u and installed it into the car all was working ok but for some reason the bluetooth call feature is playing up. if i make a call the other person can not hear me, i her them clear as a bell i have tried turning the mic volume up but no luck. also tried deleting the bluetooth device from my phone and re installing it, still no luck. and also tried a different phone and also resetting the stero to factory default. i have read a few things online and seems to be common but ther seems to be no reply to a fix. hope someone can help
Thanx
