got and 04 impreza outback sport and the entire dash illumination lights went out. (usally only one light goes out?)

i did get a new radio installed but that was over a month ago and had no problems with the lighting. is it a fuse that could have went out since all the lights went out. (the odo light still work along with every other one)  any ideas?

I'm going to assume you know about the rheostat on the turn signal which dims/brightens the dash lights?

yup i do

yup i do, it was a fuse that went bad, got it fixed.