No running lights, interior or dash lights.

Check the purple/white going into fusebox. Im thinking its dead.
It feeds various circuits. Inluding the ones you are having trouble with.

Purple and white wire is good, it goes to the hazzard lights which are working.
I am getting power across everything in the fuse box, no fuses blown.
My next place that I am going to look at is the bulkhead connector, take it apart and clean it.
I really hate going about this in the dark, this one has me really puzzled.
I did unhook the brake controller, no change.