Itripauto Sansa-fm Transm/chrg Listen to your Sansa&#39;s music on your car&#39;s FM receiver. Gets its power from your car&#39;s 12 Volt accessory port. Quick & painless setup, from box to rocks! Just connect the cables and set the stations. Connect your sync/charge cable to iTrip&#39;s USB port to charge your Sansa. You can even use your own cables to charge other USB chargeable devices through iTrip&#39;s USB port. * Backlit LCD for easy visibility during setup.