I've had my '79 Brat for a year or so and, as you'd expect, things occasionally go wrong and then I yell at the car with a wrench and then it's okay again, generally. Right now my biggest headache is a series of minor electrical issues, which for a while had my headlights not working, but since I got them on I've been mostly ignoring. My horn won't beep, though, and that's going to be an issue come inspection time in February, so it's time to deal with it.
In my adventures around the guts of my car I've found lots of electrical dead-ends and strange fixes to issues that must have come up years ago, so this seemed like the time to trace out my full harness and see what's actually going on. I diagrammed out all the wires between the battery and the firewall, so now I need to get into the cabin and track the dumb wires around under the console.
Does anyone have any sage insight on any of this? Particularly if there's a good way to get under there without making pulling the dash apart and reassembling a major project on its own? Should I just give up and run more wires as my whims suggest and leave vestigial cabling everywhere like people have been doing for nearly 40 years?