I'm connecting a ps2 and a lcd screen in my car. i pull out the center console to hook up the audio. i need help getting the sound from the ps2 to my audio system. I have a sony cd player ( the one that flips down to reveal a face). the lcd screen has an audio 1, audio 2. the cd player has front ,back rca inputs. i tried playing around with it , i do get audio from the ps2 in the car but the radio stations keep playing too. do i need to buy something to make it work or am i just not hooking them up right.

all feed back will be greatly appreciated.
thanks
grounded