Hey guys, any suggestions on how to best have an iPhone integration into the above to provide iPhone hands free as well as play my tunes off theviphone?

 

Is it still the factory stereo? I replaced the head unit which lead to adding another amp, and rewiring the speakers, and replaced all the speakers with MB Quart. It sounded amazing - better than my current 2008 E320 (upgraded sub).

I don't remember any way to add iphone to the factory head. Sorry.