Audio Systems: Lights not working on radio, volt bulbs, chevy suburban

Question
I have a 1999 Chevy Suburban and the other night I noticed that some of the controls were not illuminated on the radio. My question is this. Are there lights in there that can be changed and if so, how do you get to them. Thanks.

Answer
There are very small 12 volt bulbs inside, and yes they can be changed. The catch is, they are soldered into the PC board and require the radio to be taken completly apart. The leads are very thin and you need a temp controlled soldering station. The bulbs are usually available at Radio Shack or electronics supply houses.