Getting music in a fiat 500 pop?

What's the best way to play music from an iPhone through the stereo on a fiat 500 pop?
I don't think it has an aux input (is there a way to install one?) would an FM transmitter work (what is a good brand/model?) or does the fiat have bluetooth (does it work well and how could i use this to play music?)
as you can see i'm not very good with these technical things, so any help is really appreciated!

First things first… Do NOT buy a Pop version. This is the bottom and most basic spec. Buy a Lounge/Sport model.

No there's not an AUX port in the Fiat 500 (There's in the second phase ones though 2013/14 onwards). There's no way of installing one to the system and it's not interchangeable with standard aftermarket stereos.

An FM transmitter will work but all of them are poor quality unless you spend upwards of £50.

There's BlueTooth in all 500 models EXCEPT the Pop. You can't bluetooth stream from an iPod though.

All Fiat models, Except the Pop (see what I'm getting at here), have Fiats Blue&Me system installed. It is windows based and as such doesn't support Apple products, however, there's an adapter that can be purchased (official rrp£70 or not official for much less) and plugged into the USB port to stream direct from iPod. The Blue&Me system is extremely good and easy to use, hence, spend a few extra pounds on a second hand Sport/Lounge and better a much better spec'd car.