I recently purchased Denon's AV3803. I cannot figure out how to hook up my cable box to the receiver properly. I plugged in the component cables from the cable box to the receiver. With another component cable, I have hooked up my receiver to my TV. I can get video fine, but for the life of my, I cannot figure how to get the audio to work. Can anyone out there help me with my delema. Thanks for all your help and time.