Hey, I'm a n00b, I can't help it.
How about this:
Mini FM transmitter, you plug it into any device with a 3.5mm audio out socket and it transmits to any FM radio within a certain range. You can select the frequency to transmit on - anywhere between 88 and 108 Mhz.
Cost me $78 Australian.
Now I can use my MP3 player with the car stereo.