I drove it up on my ramps and checked from the engine all the way to the tailpipes. Almost looks like new still...nothing touching or burned on the pipes and clearance all around the pipes and mufflers. Even the engine bay is clean. It's cleaner than my newer cars.

I did see a small wet spot on the drivers output differential shaft seal. Not leaking yet and no dripping on the pipe or ground ,,, hopefully it stays that way. Other than that the car is squeaky clean. I am leaning towards alternator/regulator or electronics in passenger footwell area. May open it up and see if anything looks burned.