Error message   The Installation Exorcists  How three system
designers fixed three demonic projects.  Working in challenging
environments is nothing new for Shimek's Audio, a business more
than 60 years old, with outposts in Anchorage and Fairbanks,
Alaska. "We do installations in climates of–50 degrees
Fahrenheit," says Jon Sandberg, manager at the Fairbanks
location. "We have plasma installs that have survived 7.9-scale
earthquakes." But, if you want to know what a really daunting
environment is, try 183 unlabeled wires, many of which led to
nowhere—a situation in a theater install gone wrong that
Sandberg's team stepped into.  He explains: "We had a house with
literally miles of wire in it—none of it labeled! We had a head
end in a mechanical room that had been moved twice, so no one
even knew what wires had been where. It was horrible. We spent
four days just toning out wires [a process using a tone
generator that helps installers find wire in walls—Ed]. Along
the way, we found damaged wires and other mis