4 Port Audio Switch, 3.5mm Audio Switcher, Stereo AUX Audio Selector, 4 Input 1 Output / 1 Input 4 Output Audio Splitter Switcher, Audio Switcher Box, 4 channel switch knob, No External Power Required

4 Port Audio Switch, 3.5mm Stereo AUX Selector, 4 Input 1 Output / 1 Input 4 Output Splitter, Switcher Box With 4 Channel Switch Knob, No External Power Required

Amazon Basics 2-Pack 3.5mm Aux Audio Cable for Stereo Speaker or Subwoofer with Gold-Plated Plugs, 4 Foot, Black

BESIGN Ground Loop Noise Isolator, Ground Loop Buzzing Noise Filter, Ground Loop Buzzing Noise Elimination for Car Audio and Home Stereo System with 3.5mm Audio Cable