I went to Radio Shack and got a mini-jack y-adapter. It splits my stereo plug into two mono plugs. I then wire the pos/neg connections for CH A/B. I am having trouble detecting the buttons from my Sony RM-X1S. What am I doing wrong? The remote has 9 buttons but the board can only pick up 5 at most on CH A and only 1 at most on CH B.
Thanks for the help.