Monoprice 100663 6-Inch RCA Plug/2 RCA Jack Cable, Black (2 Pack) Save when you buy the 2-Pack! This cable is the perfect solution to connecting a mono source to a stereo system The cable has a single RCA male plug on one end and a pair of female RCA jacks each with molded connector housings and strain relief boots Warning: This cable is intended as a splitter only. Attempting to use it to combine a stereo signal into a mono signal can cause damage to your equipment The only proper way to combine two audio signals is by using a mixing board