Analog output for hifi

On my Panasonic Plasma I had an analog output for my hifi. My new OLED does not have one. I have had brain surgery and have forgotten much of my knowledge. I have a composite audio/video output and a headphone output. I know that the Headphone is a higher level out put and should be attenuated for signal output. How can I adapt the audio/video to two channel output? In essence I want the best way to get a two channel analog for my stereo hifi? It has RCA inputs