The dash/instrument cluster lights on my 2000 Honda Accord (4 cylinder automatic SE model) don't turn on when I turn the headlights on, and the dimmer dial that is supposed to adjust them does nothing. The gear selection P N D D3 D2 D1 light goes out when I turn on the headlights as well, but works with them off. I checked the #10 fuse, and it was fine I tried a replacement gauge cluster from a junkyard but it did the same thing. Any ideas?

me, I'd go to the dimmer dial, and cut the wires going to it and splice them together to give full power all the time. That often fixes it.