This is a bulb for Pontiac radios from approximately 1993-2000+. It was used in CD radios and cassette radios. It is NOT for the taller radios that started showing up in 2000 in some vehicles. If your radio is approximately 4 inches tall, this won't work for you. If yours is more like 2 1/2 inches tall, this is the part you need to solve the problem of a burnt out display.
This is brand new. If your display is burnt out and you can only see it when the light hits it just right, this will solve your problem.
Some radios that used this bulb: