Buy.com has a Mach Speed Wireless FM Transmitter for MP3 Player or USB w/ Remote Control for $18.99 after $10 rebate with Free Shipping.
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- New from Mach Speed – a wireless MP3 FM modulator that lets you take your tunes to your vehicle. This 12V USB device offers 15 FM frequencies, and supports USB and MP3. All you have to do is insert the 12 volt adaptor end of the player into your vehicle’s cigarette lighter receptacle or power port, tune your FM radio onto one of the preset frequencies, then use the channel button to set the player’s broadcast frequency to match the one you’ve set on your radio.