no Instrument cluster lighting - 85 Cheiftain

[NewRVer]

Hello everyone. I installed a new stereo in my 85 Cheiftain and lost the dash and instrument lights. Any thoughts?  Fuses are ok. All I have is a Chevy P30 chassis
wiring diagram which seems to be different from what's actually in the coach. I didn't think the lights would go through the stereo like they do on newer models. Thanks in advance.

[Rickf1985]

You probably pulled the wiring connector loose on the back of the dash while working with the radio.

[NewRVer]

Found the problem!  Wiring mistake. Go figure...😀