The Dash lights currently don't work, radio was just put in and it lights up in the key lock position, Then when I start the vehicle the radio lights go out but still plays the radio. Have checked illumination fuse and no power at fuse at all. The dimmer switch only turns on the dome lights and the bulb in the instrument panel are all good. Any help will be appreciated.

I have a 1998 Chevy S10 Blazer 4x4