thank you very much. an fm transmitter? what is that? is that instead of the radio and where to i connect it.

Hi I recently got an old beocenter 1600 receiver. I have two things I would like to connect to this. One is a grammophone player and the other is my ipod. Now the 1600 have two outputs/inputs on the back. One that says phono and one that says tape. I have connected my grammophone/turntable to the phono using a 5p DIN that connects to the red and white