omg i only have a cassette player in my van too!!! really want a cd player... so you are looking for an FM TRANSMITTER. i'm positive, i got one for my dad last christmas. at one end of the cord, there is a thing that plugs into your ipod, then at the other end, there is this big thing that you plug into the big hole thing in your car that i think is a smoking thing or whatever. you can get them at like zellers or best buy or future shop or anyplace like that. i got mine at the source. they're like $20 - $30 something like that. hope that helps!!!