There is no detailed owner's manual. Guess Newmar figured we'd depend on service centers. The dash fuse panel lists 7 relays, none for the emergency flasher. The chime or "squeal" is tied to blinking dash lights - same as turn signal but I've not been able to pinpoint the source. I've spent as much time under the dash as my back can tolerate, to no avail. If I knew what the relay or switch looked like . . . Next step is disconnecting any likely device in turn, and hope I'm looking in the right place. First off to the drugstore for a bottle of Aleve.