I have a multi-speaker in wall set up in my house. 8 speakers running off of a single receiver (Yamaha HTR-5860) through a Stereo Selector with impedance protection (TS8LS) one of the speakers has static. i figure i would need to replace the speaker so figured I could disconnect it until i was able to replace or investigate further. As soon as i disconnected it I heard static coming from two other speakers! I reconnected the speaker and the static went away from the other speakers and returned to the originakl one. Any ideas what would cause this? Thanks in advance Russ