Non-Working Radio & Equalizer / Jeep Grand Cherokee

I own a very lightly used '95 Jeep Grand Cherokee Laredo, which has not experienced any significant mechanical or electrical problems in the time I've owned it. This model came with the Gold Infinity AM/FM Radio w/Graphic Equalizer and Tape Player.

Just in the past week the radio stopped working for some reason. The strange thing is that the radio, clock and tape player all still seem to be drawing power and displaying their function on the LED displays - but there's no sound (and yes, the volume is turned up). I checked all the relevant fuses and they all seem to be solid. The one thing I did notice which might give us a clue, is the tiny LEDs at the end of each of the equalizer sliders are not lit. And since the problem seems to be an issue of sound and not whether the radio is actually working, what does this tell us? And if it is some problem specific to the equalizer, and the equalizer is integrated into the radio - what's the fix?