With these transmitters, you can plug and play your iPod with anything that has an FM tuner.  This is a great way to use your old boombox with an iPod. 

 

Our testing has shown that using this in your car will provide "OK" music quality, but quite often there is static that is just too annoying to ignore.  These transmitters work great with a boombox though, when the iPod can be placed very close to the FM radio receiver (which is not necessarily the case in the car).