RCA Mono Male RCA to Two Female Stereo Adapter Y Cable - 6" - EACH - Dedicated Audio
3.5mm Mono Male to RCA Male Cable, Black, 6 foot - Walmart.com
Amazon.com: Legrand - C2G RCA Male to RCA Female Signal Splitter Cable, Black RCA to RCA Splitter, 6 Inch Audio Stereo Y-Cable, 26 AWG Audio Signal Converter Cable, 1 Count, C2G 03177 : Electronics
Monoprice 3.5mm TRS Stereo Plug to RCA Jack Adapter, Gold Plated - Monoprice.com
2x Microseven 3.5mm Mono Jack Stereo Amplifier Female to RCA Male Adapter for Microseven 2-Way Audio IP Cameras - Accessories microseven works with amazon alexa, motion activated security camera, ip camera, live