Music options in E90

Hi guys

I need some help please. Been doing some reading and need opinions on the best option for music in my wagon.

So firstly its a 2010 E90 LCI with the Exclusive pack so has the Aux and USB in the armrest, as well as the phone snap in thingy.

WHat is the best option for me to get tunes. I have an iPhone 5 which ideally i would want to use.

I want to play music, use steering controls, and charge phone.

Currently i'm using a USB stick. Which is ok I guess.

Options I have been thinking about.
1)iPhone plugged in via white usb cable; this doesnt seem to work. Is there a software update I can do to get it working like the newer models?

2)BMW Y cable to 30 pin adapter then Apple 30 pin to lightning adapter. Well this is pretty expensive and just seems inelegant to me.

3)BMW Y cable for Android/Blackberry with the micro usb to lightning adapter, I prefer this to II as it gives me more future options of phones. I will never need 30 pin but may need micro-usb. Does this exist and does it work?

4)BMW Snap in Adapter, can you get these for iPhone 5 yet? seems to be mixed info. Also this looks pretty expensive. But perhaps neatest solution?

Let me know your thoughts

Thanks