general: check that output is valid before checking if it can connect to input
general: check that output is valid before checking if it can connect to input

morbozoo/sonyHeadphones,morbozoo/sonyHeadphones,2666hz/Cinder,2666hz/Cinder,sosolimited/Cinder,2666hz/Cinder,sosolimited/Cinder,sosolimited/Cinder,2666hz/Cinder,morbozoo/sonyHeadphones,morbozoo/sonyHeadphones,sosolimited/Cinder