Just got my first prius 3 weeks ago used 2009 and i am loving everything except the radio, So i decided to go with a KDR730BT. I have also decided to stealth install. After seeing the step by step on the site i can say i feel confident i can accomplish this. I have two questions though. the radio i am getting has a mic jack for hands free, so does a 2009 prius option 1 have existing prewires? If not anyone have any suggestions for wiring the mic? I appreciate the help everyone "thank you".