1. Connect one end of the AUX cable to the AUDIO OUTPUT port on the back of your TV,and then connect the other end to the AUX input of the soundbar.
    A. The connecting port of the TV is AUDIO OUT, not AUDIO IN
    B. Make sure that the AUX cable is a 3.5 mm cord.
    C. Make sure the AUX cable is not damaged
2. Press the “AUX” button on remote to switch the soundbar to AUX mode, you can also press “M” button on top of soundbar to switch to AUX mode.