Yeah, the cassette adapter is the best, easiest, and cheapest way. Pick one up at Best Buy for $15 or $20 and your home free. As Schwa said the quality is higher through the casette than through FM or the cigarette lighter. There's a $600+ after market product (try Google) if you want the iPod integrated through the Navigator, but I find the nice slot behind the cup holder cover (when it's in the closed position) is perfect for holding the iPod; and this brings the controls as close as the Navi screen. Just don't stop suddenly or the iPod flies to the floor.