My daughter has just purchased a Ford Fiesta 1.25 Freedom (07) Special Edition. The car has a Ford 6000 cd and is set up with bluetooth, I have paired telephones to the system but find that even though I can hear the caller clearly in the car, they can not hear me, well only faintly. Are we supposed to plug a wire into the headphone socket of the phone and connect it to the aux plug by the gear stick or should the phones be working completely on bluetooth. Thanks in advance for any help