This quality Composite Adapter from Computer Cable Store will allow you to connect two Male RCA's to one Male without the need for a separate Y Splitter cable.
4,078 Rca Connector Images, Stock Photos, 3D objects, & Vectors
SatelliteSale Auxiliary 3.5mm Audio Jack to 2 RCA Composite Aux Cable Universal Wire PVC Black Cord 30 Feet, Size: 30
6ft RCA M/M Composite Video Cable
A/V and RCA (Composite Video, Audio) Cable for Raspberry Pi : ID 2881 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
2 Way AV Switch - 2 Input 1 Output RCA Selector Switch for Composite A – THE CIMPLE CO
RCA Composite Coaxial Video Cable RG59 Black 75 Ohm - Custom Cable Connection
10x USB Female to 3 RCA Male PC TV Splitter Audio Video Composite Adapter Cable
Adapter - VGA to RCA Converter - 1080p - Video Scalers, Audio-Video Products
2 x RCA Male / 1 x 3.5mm Stereo Female, Y-Cable, 6 inch Gold Plated Connector Audio / Video Products Audio / Video Adaptors; 30S1-01260 Connection
C&E 6 Inch 3.5mm Female to 2 RCA Male Stereo Audio Y Cable, Nickel Plated Adapter Compatible for TV,Smartphones, MP3, Tablets, Speakers,Home Theater
10 Pin to Composite Cable; NOT S-VIDEO CABLE, for Audio and Video; 10 – THE CIMPLE CO
Commercial Electric 6 ft. Dual RCA to 3.5 mm Adapter 303570 - The Home Depot
Rca Audio Cable Jack 3.5 To 2 Rca Cable Aux Rca Jack Adapter - Temu
RCA HDMI to Composite Video Adapter - Micro Center