Hello sir. ..I m vineetsahay.I have a Sony music system Dhc-az5d ..have a problem ....its all small surrounding speaker will make a different sound some time.like a FM radio sound or spark in wire to each other of any speaker .I will be checked all cable perfectly..This case of problems arive some time but not a continuous. ...jaise radio without station sound exhibit krta h....pls sir tell me. A answer