Sony cd changer

I have a Sony Xplod Head Unit it is about a year old and i also have a sony explod 10 disk cd changer that is about a year old too i got it from a friend of mine that bought it an could never figer out how to hook it up. I have hooked up the old CD Changers the ones with the box that the Antenna plugs in to. But thisCD Changer only hase the controler wire going grictly in to the changer and then the 3 power wires (Red Yellow an Black) it also has a little Blue plug on the changer that says output right below it now how do i hook up the cd changer to work with my head unit.

i tryed hooking it up be for and i put it on the right radio station and i get nothin. I can choose what station i want it to be set for with the controler for the cd changer can anyone help me get this working. The model number on the changer is CDX-565MXRF

sounds like its missing somthing.

i got it to work now but it dont come in too clear like if i move in the car just the right way it will come in but other wise it is static