I know somewhere on here I found a post that had a link to an automatic audio switch (I think it might have been Sony) that I can't find anymore. I'm looking for an audio switch with RCA inputs that will switch between 2 sources automatically based on which one has sound. If anyone knows of one, could you let me know. Thanks

 

Yup, it was a sony but they discontinued it. Someone else is supposed to be coming out with one soon. I will have a sony one for sale, as soon as I get Ron's RCA input thing.

 

You can use a 4PDT relay to auto switch the sources. I did it back when I had 2 HUs and it worked great.