AppRadio 3? Which 370Z Should I Purchase For Best Integration?

[NoWheels]

Hi.

I am currently doing a little "window shopping" for a pre-owned car.

On the road a lot and use my iPhone for everything: Nav, Weather, Music, etc… etc… etc…

What I would like to know is what 370Z model year and options should I be looking for to facilitate the best/simplest integration of an AppRadio 3 and my iPhone 5.

Would like to stay with a 2009 or 2010 model year.

Would like to have stereo and phone controls on the steering wheel.

I understand that I would need to purchase a steering wheel control adaptor.

What I don't know is what 370Z model/option is required for stereo and phone controls on the steering wheel.

Also is there a steering wheel control adaptor that would interface with both the audio controls and the phone/bluetooth controls on the steering wheel.

Thanks for your time.
Rob