How can I connect iPhone 6 to (Aug build) E46 2002 E46

[nexus.6]

Could anyone advise the easiest way to do this please? I’ve tried searching everywhere but many articles are too technical for me. 

Surely this can be achieved relatively simply? I would ideally like to make/ receive calls in conjunction with the multifunction steering wheel and if I can access my Music too that would be a real bonus ( although I do at least have the 6 CD player in the boot).

Thanks in advance for responses and apologies for probably asking an old question.  

[Bimmer Owners Club]

Hi Tony

I think the technology in a vehicle of this age is quite restrictive, it may be better to fit an aftermarket unit with many more functions and connectivity if far superior.

I replaced the head unit in my Z3 and it is superb for making phone calls and streaming Music from Spotify....only £75 as well.