I have a set of Rugged radios that I am selling. They are setup for aux input, up to 4 headsets, and Radio. I have 3 headsets and 2 cables to hook them up. Everything works fine I just need to fix the motor on my 900. I don’t really know much about the setup because it was already installed when I bought my 900. It looks similar to the 660 kit. If you need more pictures let me know. Thanks Dane