Symptom is radio diplay or controls don't light up, Delco CD radio's and Bose preminum sound radio/CD players. Models all GM cars and trucks 1990's to presnt.
This problem is caused by two tiny burnt out bulbs behind the LCD display thay are soldered to the
circuit board behind the radio LCD display and can be replaced, this requires the
radio be removed and the housing taken off and the front display
un-clipped, you will need a low temperature solder pencil and thin strand solder the bulbs are available from Radio Shack, the part number is 272-1092, this is a 2 pack of miniature 12 Volt 60Ma bulbs. This radio display bulb is used in may car models, this bulb also repairs climate control displays as well as other low light displays like switches
dash lights are either out or fading, also on the radio and heater.
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