This is a speaker level input harness for DIAMOND AUDIO, HERTZ, BOSTON ACOUSTICS, CLARION, FOCAL, HERTZ, INFINITY, KENWOOD, MTX, PIONEER, POLK AUDIO, ROCKFORD FOSGATE, SONY, LANZAR, RE AUDIO and many other brand amplifiers. This allows you to connect your factory stereo to your amplifier without RCA cables. It can also be used with head units that don't have an RCA output. If you have any questions feel free to message me and I will tell you if it is compatible with your amplifier.