GoKawiilAmazon removes voice control for Echo's 3.5mm aux input
Amazon has confirmed it has discontinued the ability to use Alexa voice commands to play or pause audio through the 3.5mm aux input on older Echo devices, including the Echo Plus (2nd gen), Echo (3rd gen), Echo (4th gen), and Echo Studio (1st gen). The physical aux connection itself still works, and users can still control playback manually through the Alexa app or use Bluetooth pairing instead.