I am searching for electrical gremlins in my 1997 K3500, and wondering if anyone else has experienced similar issues. Truck is off for hours and suddenly the front and side marker lights, the rear taillights, the instrument cluster lights, the 4wd indicator lights, as well as the buzzer/chime with door closed turn on and stay on. They all shut off when I remove fuse #3 from fuse box at the end of dash. Owners manual says fuse #3 is for Courtesy lamps, Cargo lamp, Glove box lamp, Dome reading lights, Vanity mirrors and Power mirrors. When fuse #3 is replaced, everything stays off for a few hours, and then turns on again, i noticed that Circuit Breaker A was extremely hot (Power door lock,6 way power seat, Keyless entry module). Could it be a bad relay, and which one would that be? Am I having a wiring meltdown behind the fuse box? I haven't been able to find a bad ground and the fuse and breaker do not blow, At least there is still continuity through them, Any suggestions or comments would be appreciated .I Hate having to pull the fuse to keep the battery from draining.