Thanks @hotwire. Please bear with me ladies and gentlemen. I'm a total noob to BMW and all its hacks.
So my E70 X5 3.0si 2007 is Japanese import. I do not know the process involved in programming. How do I change the FM frequencies to NZ permanently? Is there an OBD Wi-Fi or bluetooth tool and app that can be used easily to accomplish this? If not, what's the easiest way? What are my options? Experts here, I beg not to be flamed for my inexperience.