Electrical help needed, underdash wiring is a disaster

I installed this harness in my Duster. It's a quality harness and I think it's better than trying to repair an old butchered one.
I installed this harness in my Duster. It's a quality harness and I think it's better than trying to repair an old butchered one.

Thank you all for all of your suggestions. At least I have some choices. I think I'm going to try and tackle this problem without buying a new $650 harness. The brake light switch on the brake peddle was faulty. Now that the brake light and single light issue is resolved, I'll check each wire and replace as necessary.