I have a 2000 grand prix gtp.....I unpluged the factory cd player and pluged in a plug and hooked up a after market cd player made sure was right plug....so until i get a mount kit i unpluged the aftermarket on and put factory one back together put dash all back on and noticed the display center with the picture of car and boost is not lighting up it is just black...I am not sure what to do without wrecking anything...doubt all 3 bulbs burnt out at same time so is it a security feature or maybe blown fuse ???? id appreciate if anyone knows anything about this