what about using this in the car?

looking for a way to listen to my audio books - fm transmitter is not working for me - can this be plugged into lighter outlet in car? Or is there another way without the fm transmitter to listen to my books? 3 hour commute is long and books on cd are expensive.

Philips Fidelio DS3000 Desktop Speaker Dock

Philips Fidelio DS3000 Desktop Speaker Dock

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