pitchfork

We just had a new company Audi A1 delivered, which although nice, has failed to have Bluetooth installed (even the garage couldn't work it out on the settings!) Anyway to cut a long story short, and no go to the cost of retro-fitting this, what alternatives are there for just making and receiving calls whilst travelling, so as not to break the law and answer a call!! :) We actually have an Aux In within the car which is fine for music and audio from our iPhone 5's but its just the calls. Is there a simple solution as in a mic that we could buy and attach to sun visor to talk and still use the Aux out cable for the car to hear the caller? Or maybe a comfortable headset with Mic (instead of the white apple earbuds) ? This maybe our purchase now, so any money saving solutions would be a great alternative. Thanks