I am a technical novice so please forgive me if my questions seem obvious to you. I purchased a echo dot and want to connect it to my bose wave III. I purchased a cable and one end plugged into the headphone jack on the echo and the other two plugs to go into the aux in and headphone jack of the wave. One plug is red and the other is white. I tried various combination of plugging these into the aux in and headphone jacks but I get no sound out of the bose. When I unplug the dot, the sound is fine. Do I have the correct cable? I don't know what I'm doing wrong.