on an ipod, you can listen to radio music or your own music, play games, and more but a radio can only listen to music
On any 3.5 mm jack.
at a store. duhh bestbuy, circuit city, ultimate elctronics, walmart target. man shoot sucka
It depends on what iPod it is because ther is more than 25 diff. Ones an iPod touch is a touch screen. With ether 8 gb or16 or 36 or 64
an ipod nano is smaller than an ipod.