The Neo iON provides direct connection to most factory and aftermarket car stereos. When connected your car stereo buttons will control the iPod, the iPod battery will charge, and the sound will play from your car stereo speakers. The adapter includes a 11.5’ (3.5M) cable that plugs directly into the iPod. The other side of this cable plugs into the CD changer port on the back of the car stereo – there is no FM modulation. Once the cable is plugged in your car will charge and power your iPod, as well as control it (Next/Previous track, FF/RW) using your car stereos existing buttons (steering wheel controls if you have them). The New iON Car Kit is compatible with 3G/4G iPod and iPod mini. The Neo iON retails for $189.