DIY Audio Electronics from Zynsonix.com: Custom RCA Switch Box for Audio
4 In 2 Out / 2 In 4 Out RCA Audio Signal Selector Switch Device with Remote
DYNAVOX AUX-S PRO Audio Selector Switch for RCA Inputs / Outputs Silver - Audiophonics
Bi-directional 4-way Rca Stereo Audio Switch L/r Sound Channel Audio Switcher,2 In 4 Out Or 4 In 2 | Fruugo NO
Meterk Linepaudio Audio Switcher Rca 2 In 1 Out / 1 In 2 Out A/B Switch Stereo Audio Splitter Box With No Distortion Rca Jack For Switching Between Computer Speakers And Headphones - Walmart.com
4 Way AV Switch - 4 Input 1 Output RCA Selector Switch for Composite A – THE CIMPLE CO
PROZOR 2 in 1 Out R/L RCA Stereo Audio Switch – prozor store
6 Input 1 Output Switcher Audio Source Selection Switcher RCA Audio Input Signal Selector Switch with Volume Adjustment and Manu - AliExpress
Goldpoint SW4 Input Selector
3 Port RCA Switch Box - Audio With Manual Switching | Cables 4 ALL
Fosmon RCA Splitter with 4-Way Audio, Video RCA Switch Selector Box + RCA Patch Cable and S-Video Cable for Connecting 4 RCA Output Devices to Your TV - Walmart.com