I made a custom phono cable with a ground wire for the "Technics SL-10." The SL-10 comes with its own dedicated phono cable, but the hole in the middle of the R and L channels serves as the ground jack. Therefore, I created a new phono cable compatible with the SL-10. For the cable, I used Mogami 3106, a two-core parallel stereo microphone cable. For the RCA plugs, I used REAN NYS-352G (old type), and for the ground wire pin, I repurposed the positive pin from the RCA plug. It's finished to be soft and easy to handle. *The old type of NYS-352G has a slightly narrower tip for the negative terminal.