In my infinite wisdom, I decided to test the radio power line for power before installing a new radio by tapping the line against the ground... some sparks flew, but now no more sparks are flying. I checked the fuse, which looked good, changed it anyway, and still nothing. The glove box light (on the same fuse) is not lighting as well. Is there a separate inline fuse for the radio in w123s?

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1992 300D 2.5T 249k - Parked with a bad transmission
1981 300SD 142k - Daily driver