I have the fiat 500 pop and have got an iPhone and I don't know the best way to play music which isn't Expensive!! I've looked online and it says something about a USB and have researched into the fm transmitters or an aux but theres no aux point?! Have no clue what I'm doing!!!

With a Pop with no Blue & Me added as an extra you have no aux. So you are stuck with radio/CDs/MP3 CDs, or something extra like a transmitter if you want to use your ipod. Or something much more complicated.

An FM transmitter is probably the easiest solution; they can be bought on fleabay for pennies.

It works by transmitting an FM signal which can be picked up by your existing radio.

I had one and the sound quality was not great - very compressed - but that was a long time ago. But might be worth going for a good one as they are not all the same.

I don't see why when you can buy a Pioneer mechless head unit that will blow the OE system away for $88. If you buy an FM transmitter it will sound lousy as it's compressed to FM (only to be run through the noisy OE amp), and if you do get a good one, it will cost nearly as much as a headunit without the result.