Use Cell Phone with Car Speakers

With this cool gadget you can listen and talk with your cell phone
through your car speaker system!

Hands Free Cell Phone FoneFree Anywhere works in any Car, with any Cell
Phone, using any Radio. It instantly transforms your Cell Phone into a
speakerphone! Set up is easy, it takes only seconds. No installation
required. No wires or annoying, bulky units... no need to use your
cigarette lighter either. Simply Clip, Press, and Talk!

http://www.cellphonehandsfree.net