Lights on this car are all controlled by the body control module. Creepy thing is the car can even tell when a certain bulb goes out (saw this in the sevice manual while browsing). My best guess is that it has to do with how the power was wired for the boost gauge. I'd take it to the installer and have them sort it out.
Look at the fuse itself, the connection on the side should look like this "n" connecting one terminal of the fuse to the other, if the "n" is burned out, it will be all black and split. You will be able to tell.
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