@monte70car,
All of the interior lights turn on except the indicator and warning light come one when they're not supposed to. So when I use a turn signal for example the correct indicator light will illuminate properly and all other indicators (Gen, high beam, etc.) remain off like they are supposed to. However, the night lights for the radio and aftermarket gauges flash with the turn signal. The dome light doesn't have a bulb at the moment.
The interior lights do come on with the headlights, but I have to adjust the turnknob for the lights all the way up before they come on. Also, when the headlights are on the turn signal no longer works at all. The light on the dashboard usually illuminates for the turn direction, but doesn't flash.
@stangeba,
Thanks for the pictures! I checked the ground wire on the ebrake and it seemed solid, but I will probably tear apart the dash and trace the wire to see if it's still in ok condition if I can't find any other solutions.
The previous owner left most of the wiring a complete mess. Most of what's in the engine bay has to be replaced because they got too excited with the wire cutters. Interior wiring seems pretty intact for the most part.
Thanks for the help!