Gomez, James "Audio Install Prompts Customer To Join The Circuit" Installation News August 1995: 52-60.
https://farm2.staticflickr.com/1820/...feb8d545_b.jpg
https://farm2.staticflickr.com/1818/...1626dd13_b.jpg
https://farm2.staticflickr.com/1778/...42e3103b_b.jpg
https://farm2.staticflickr.com/1777/...0d697e22_b.jpg