I did get a picture with installation instructions. It is simple, but would have been nice if it was provided in the beginning. I did not get dip switch setting from them yet. If I am correct my switch settings should be 1-5 Off, 6 on, 7 off unless it does not work, and 8 off if I use the oem mic. though it looks like if switch 7 is on, then maybe switch 3 or possible switch 5 needs to be on. not sure.