Audio Systems: back lighting on cd player, player model, harder time

Question
My 1995 Corolla came with a standard cd player (model A51813). The only area that is eluminated is the radio station display. I have adjusted dimmer switches, but it has no effect on any of the push buttons. In the dark, you can't see the buttons for am, fm, cd, scan etc. or any of the set radio stations. The dealer claims this is just the way it is. I have a hard time believing it, and a harder time changing stations at night!!. Am I being told the truth?
Thank you

Answer
NO
there  is green lights around all the knobs and in the cassette door also   it can be a that the lights when bad but they are 3 circuits so it is kind of hard that to when bad or 8 bulbs are bad  check the wires there is a little green wire in the back that is the light wire
good luck