Well with this simple device you can. A lightweight portable kit with a charger FM transmitter compatible wtih your Sansa for people on the go. Simply connect your Sansa into the holder secure it tightly plug the kit into your car's cigarette lighter and connect it directly to your Sansa's data charging port to charge and play. The digital tuner locks into the clearest available FM frequency. You can adjust it up and down very easily. The digital wireless radio transmitter connects your Sansa or MP3 via cable provided to your car stereo allowing you to enjoy your digital music with full stereo sound on the go. A built in USB port enables charging of other mp3 players, cell phones, PDAs etc. Adjustable arms open by a click of a button on the side and hold your Sansa securely while on the road. Suitable for Sansa e200 c200 and c100 series.