I've got a 6000CD with voice control and bluetooth, I had my phone replaced as it wasn't working properly,( replaced with same model)It did work all ok to previously.
The problem is that the unit will not stay connected to a mobile, I tried several different mobile phone and they all lose connection and it is not remembered by the stereo unit, so i'm positive it's the stereo unit.
I've debonded all the phones, I couldn't find the fuses for the stereo, so i disconnected the battery and re entered he code
Still no joy

yours in hope