Originally Posted By: "RadioC1ash"
You could use one of these, though you wouldn't need the composite video.

It would be cheaper to buy a FM transmitter that used the cable I wanted. The other problem with my iPod is that the headphone plug is getting old, so if I jiggle the plug it will pause. And it will often pause when I break hard, or take a sharp corner. So if I have the power and sound going through the dock connector I will kill 2 birds with one stone.