We are about to take delivery of a 2006 prius pkg 3. We note the problems with SiriusPrius and some IPOD interfaces. Sure looks like a problem with the programming of the factoryh head unit to me... Question: Were is the FM antenna preamp located in the car? In the Radio or in the Antenna Base? Question: Where does the Factory AUX IN located in the arm rest plug into the Radio Head Unit? Question: IS there a way to plug into the Radio Head Unit to add a second AUX IN for use with a Sat Radio installed in the DIN slot below the CD Player. Thanks.