OK so I threw caution to the wind and went and picked up a 2007 TDV8 yesterday. The satnav was frozen on the LR logo. So I did the usual and searched the forums and found the biro bypass fix on the Nokia BT module and pleased to say it worked !. I just need to replace the BT module as it had water inside and the circuit board is fried, despite having the water shedder behind the stack.