Cox, Bill: "What Not To Buy" section in "Used Cessna 182 Skylanes," May 23, 2017, updated November 25, 2020, Plane and Pilot, retrieved March 31, 2021; "Unfortunately, ARC avionics [were troubled with] a number of problems, most [associated with] overheating and eventual failure. ... Cessna buyers began purchasing airplanes [that were] naked of any avionics... flying them to [their] home base, [where they had] NARCO or King radios [installed by] local shops, [instead]."
Moll, Nigel (April 1981). "Name of the game: Would a Piper Aztec by any other name—say, "Piper Penobscot"—fly just as sweet?". Flying Magazine. 108 (4): 58. ISSN0015-4806.