93olds88 no dash lights

I have no dash lights at any time. With headlight switch on, or with daytime running lights on. When the DRL comes on, the radio and climate control displays dim so i can barely see them. With the DRL off the radio and climate display is bright (In the daylight). All fuses and relays are good and all interior lights work. Tried a new headlight switch and interior dimmer switch. I disconnected the DRL module but that didn't help. DRL module ?

there are little bulbs mounted into the back of the dash cluster. check them out!

Sorry. All new bulbs (194).

does the lights for the dash go out when you turn on the headlights and then come back on when the "P" switch is only on?