ok fair play.

But the module I'm looking at states this

"With the FM Modulator you can hook up the Carplayer Jukebox to your factory stereo or any other car stereo that does not have an auxiliary input. Just connect the FM Modulator to the antenna plug on back of your current stereo, and you can transmit any audio signal to an unused radio frequency in your area (such as 88.1 FM). The sound quality will be the same as a high powered radio station."

Which sounds to me like a radio broadcaster!! Not what I want. What exactly do I need to find?