electical burning smell

[fullthrottle52]

HELP!!

I just got home from a little evening ride with the wife. Went 15 or 20 miles. Mostly slow going through a park.

Here is the problem. We were about ready to head home and stopped at a stop sign. All of a sudden we got a blast smell of burning electrical wires. No sizzle or any other sign or problems from warning lights or anything else. It is definately an electical burning smell. I don't think it is coming from the engine bay. I seemed to come from the dash or vents. This happened once before a couple of weeks ago also, but I was not real sure it was from the car. This time there was no doubt. It is gone as quick as it came.

Here is what i noticed at the time. The air was running with the top down. about 81 degrees out. Put top down and left the air on! If was not on automatic but on manual and the internal blower air fan was running about 50%. It probably had been running for some time. I did notice the temp gauge went up about 5 to 10 degrees after the smell. It was directly over the 0 on the 180. A little higher than normal.

The car ran strong going home. I checked and both radiator fans are running.
Originally thought I may have burned one out.

If anyone has had this issue before or have any ideas, I would really appreciate it.

2000 Boxster
52,000 miles.