Please advise mequestion 1- what is your best price (in US dollars) for 1 unit delivered to me in New Zealand? 2- will the unit fit straight into my 2005 model Nissan Tiida G to replace the original Nissan unit from Japan that does not work in New Zealand.Of do I need to get adaptors for the wiring and car dashboard to suit. 3/ do the original steering wheel controls simply plug in to this unit?