All4Cellular offers the refurbished Belkin TuneCast Auto Live FM Transmitter for iPod or iPhone, model no. F8Z498-P, for $8.95. Coupon code "EARTH13" cuts it to $7.79. With $2 for shipping, that's the lowest total price we could find for a refurb. (It's also $32 under the best price we could find for a new one.) It utilizes an app on your iPhone or iPod touch to find the best FM station recommendations for your area. Coupon expires April 24.

A 90-day All4Cellular warranty applies.