interior lites

[Kurt L]

i've got this 88 burb that i got for a good price,anyway iv'e replaced the interior lites,but the one that is over head[in the front]and the one that is on the back ac don't work,but the one that is under the dash does.now is there a separte fuse for those lites or are they on the same fuse as the under dash lite is? i'm probably looking at a burned wire or what?need some help here before i go and tear out the head liner to check for burned wire.both the bulb that i replaced were blown.not very good at electrical stuff.