Hi thanks for the reply.
I don't think its a power issue. To get it working once I deleted the profile Nissan350z, searched for devices, automatically found the Nissan device, asked for code, connected transfer service list and no problem, the next time I got into car it asked for authorisation code, connected and then disconnected.
I have even updated firmware on phone, thinking that might help.
The phone connects to my tom tom 910 with no probs, so it just leaves me wondering what is going wrong. I was just hoping someone could confirm that the device does not support the D900.
I will keep an eye on the tread, who knows.
Thanks for your input though.