24-650 - RCA Plug to 2 RCA Jacks
RCA "Y" Cable
Commonly used in a variety of audio applications including combining left and right line level signals to a mono input, or splitting a single line level signal to feed two amplifier inputs.
24-770 - RCA Jack to 2 RCA Plugs
Divides a RCA input into two outputs.
24-13203 - 6IN 3.5mm Male To Dual Rca-f
Cable Assembly Type: Audio / Video Cable Length: 0.2 mCable Length - Imperial: 7.87 "Cable Length - Metric: 0.2 mConnector Type A: 3.5mm Stereo Jack Plug Connector Type B: 2 x Phono Sockets Jacket Colour: Black No. of Poles: 3
24-4590 - Stereo 3.5mm to RCA Female
Use for connecting a 3.5mm line output to an amplifier or other RCA type line input. 6" in length.
I have used MCM for many years and would give high recommendation for getting the job done right.