Commercial Electric 15 ft. Audio Cable with RCA Plugs 280489 - The Home Depot
Headphone Jacks and Plugs: Everything You Need to Know - Headphonesty
3.5mm (1/8) 4-Pole (TRRS) Audio Plug Terminal Block : ID 2914 : $2.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: TNP 3.5mm to RCA Audio Cable (30 Feet) Bi-Directional Male to Male Nickel Plated Connector AUX Auxiliary Headphone Jack Plug Y Adapter Splitter Converter to Left/Right Stereo 2RCA Wire Cord :
Lightning to 3.5 mm Headphone Jack Adapter - Apple
Amazon.com: 12 feet 3.5mm 1/8-Inch Male Mini Plug Stereo Audio Cable : Industrial & Scientific
SpeaKa Professional Toslink Digital Audio Cable [1x Optical plug 3.5 mm - 1x Toslink plug (ODT)] 1.00 m Black | Conrad.com
Legrand Brass Banana Plug Audio Connector in the Audio Connectors department at Lowes.com