RCA Plug to 1/4in (6.35mm) TS Mono Jack Adapter, Gold Plated – FlexRadio
3.5mm Mono Male to RCA Male Cable, Black, 6 foot - Walmart.com
0.3m 6.35mm 1/4" Mono Jack to 2 RCA Male Cable Lead Audio Amp TS Phono Plug | eBay
Hosa CRA-110 10' RCA To RCA Mono Audio Cable | Full Compass Systems
Amazon.com: C2G Legrand 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
1x 6Ft 3.5mm 1/8" Mono Male Mini Plug To RCA Male Audio Adapter Cable Cord Gold | eBay