blown relay or fuse?
If thats ok then go over where you were working on the boost guage, you might have ripped the ground wire out for all the interior lights. Thats the only other thing that can cause it.
hmmm, I know when I pulled the center vents out the cable that runs to vents for the lighting got unplugged inside the vent and it so hard to see in there and get them in correctly, it was just a red and black cable
Hah ha, yeah its hard to get them plugged back in, i usually have to reach under the dash to get them connected back up. The lights aren't gonna work if you don't have them plugged in


