^ I got that one above, be careful though. I've not checked it against the 350z with the full version yet so don't know 100% that all the stuff works, it's a volvo wagon that it seems to do most things on. Mine is a JDM too so might be different, you need to confirm with someone using the full version and a bluetooth dongle on a uk z. from what I've read and seen it should be fine, well worth the <20£ it'll cost to get you going. DO get a high powered charger for the car tough, it'll suck out the battery of the phone otherwise.
Like this:
http://cgi.ebay.co.uk/Micro-Dual-USB-Ca ... 2034wt_934