Tswann75

So i recently purchased a 1988 camaro iroc z and and found that none of the interior lights worked. So i look through the fuses and found the accessory fuse was blown. When i put one in all the lights in the car turned on (including the gauge cluster) and wouldnt go off so i removed it and then a few days after i put it in to see if the radio worked and all the lights came on but would go off when supposed to but the only lights that dont work is the gauge cluster lights. I know the bulbs are fine so whats making them not work all of a sudden?