I think it would be easier to just add or replace one of the existing cameras with one that has 2 way audio. That would be WAY more simple and easier to setup with less maintenance. And if you're not around to help him he and the camera fails he can easily unplug it and plug in a replacement. With a...

Well, after almost giving up on this adapter and getting ready to toss it, I read through this forum and copied/pasted the needed lines for config.txt, which I had already entered, but I typed them, more than once, looking at each character to ensure it was correct.... but after deleting my lines an...