This is a new Nicestuff 68825 (also known as the NSD-68825, AD825 or 68825PAC) 6pin to 8pin carkit adapter harness. It is used to connect certain Motorola (IHF1000, IHF1700, T605, T603) and Raytel carkits to vehicle-specific adapter harnesses. Connections passed through this cable from the integration harness to the carkit are: VBATT - constant +12V power supply Ground - chassis ground Ignition - switched +12V signal Mute - active-low trigger Mute connection Speaker (+) - differential mono audio signal from the carkit or device Speaker (-) - differential mono audio signal from the carkit or device I have a mobile electronics installation business and am selling off some excess inventory. Please feel free to send a message if you have further questions about any of my items. I am willing to ship this item internationally, but please contact me first so that accurate shipping charges can be assessed. Thanks for looking!