After looking at getting a Bluetooth to use in my jeep, I realized that hooking it up to the aux port on my stereo should function the same way as the apple headphones with the mic do. Lo and behold my calls came thru the speakers loud and clear and the mic on the iPhone picked up my speech clearly without any problems! A hands-free system for the cost of a $3 audio cable from walmart and I can listen to my iPod at the same time!