Can the light in a stock '97 Grand Am Radio be changed?

Not without complete disassembly of the redio and electronic knowledge. Its not just a twist in bulb

I know this is a relatively old thread, but if someone is searching here is how to replace the bulb for the radio display. http://www.youtube.com/watch?v=uWzXaPL8MgQ

if you are mechanically incline then it is simple to remove, it is trying to find the replacement bulb. I am working on that issue now

Go to GAOwnersClub.com forum. They have details instructions with pictures and advice on buying replacement bulbs.