Question, maybe two, that I'm not really sure how to search for. Picked up a new iPhone a week ago. (Love it). Problem. Car has a mp3 player\3.5mm jack in the dash. Allows me to play iPod through the car, works great, used to use with my old iPod as well. Problem. Can't make a phone call when it's plugged in, as the phone thinks a head set is plugged in. Any way to correct this? Question two - as it relates to the first one. What happens if I use a BT headset? I have one, but it's dead. I plan on getting a new one, but am wondering what happens if that same jack is plugged in, and I attempt to answer a call using the BT headset? Does the headset then takeover, allowing a phone call? Thanks for any answer on this.