Wow! Thanks for the replies. I have done as suggested and done some routing around both the forum and my new mid-life crisis (wife's words, not mine) and discovered loads. Yes, the connectors are exactly where mentioned under the cubby. Yes, I have a controller under the glove box hidden floor. And yes, I have the steering controls..... All good so far!
Now the bad bit. Nissan want £177 + VAT for the cradle ?!?! But only £82 + VAT for the BT module. Not quite sure how they figure that out.
So, where am I going to go? I have contacted a couple of people on the forum who may be able to supply the cradle at a sensible price. Failing that I will plum for a replacement HU (probably sound advice from knowledgeable forum members... Thanks!). Which one?... Probably the Parrot i8400 I think. Anyone got any experience of this unit?
Cheers everyone!!!