1993 Cadillac DeVille Owner's Manual - Page 156

Electronic Solar Sensor The Electronic Solar Sensor is part of the Electronic Climate Control System. It is located on topof your instrument panel speaker grill. The sensor monitors the sun's solar radiation by telling the Electronic Climate Control system what angle and the intensity the sun is at. The Electronic Climate Control thencan automatically make the necessary temperature adjustments. AUDIO SYSTEMS Your Dekoa sound system has been designed to operateeasily and give years of listening pleasure. But you will get themost enjoyment out of it if you acquaint yourself withit first. Find out what your Delcoa system can do and how to operate all its controls, to be sure you're getting the most out of the advanced engineering that went into it.