Dash lights

[Kevins750]

So I decided to find out why none of my interior lights are working. Looks like previous owner pulled the courtesy lights fuse. I installed the fuse and got my overhead, glovebox,and floorboard lights working at this time.
In the middle of this I decided to put an old stereo system I had left over from years ago, anyway I decided to cut the wires on the old radio(I know I should have bought the kit, but I didn't) I am only using the 3 wire harness(battery power, switched power, ground) the other harness has speaker wires and other wires I am not sure of there origin.

So the question, did I cut a ground from my dash lights in the radio harness? I have power through all the fuses,  but no dash lights. I have a manual I bought the other day but no detail on the radio or dash wiring.

[Gary Lewis]

Instrument illumination is here: Electrical/1981 EVTM/Instrument Illumination.  And radio wiring is here: Electrical/1981 EVTM/Radios.

As you'll see, the instrument illumination fuse (#17) is not the same one as interior lights.  So check to see if the guy also pulled that fuse.