How to run Sansa clip 4g thru car radio speaker system

How can I do this or is it even possible… Thanks

The best way is if your car’s stereo unit has an AUX IN or USB port. Otherwise, you can use an FM transmitter or cassette adaptor; neither one of which work very well. In other words, you will not get the same sound quality and volume as you do with the earphones.

I have the fm transmitter… Thanks,…