Didn't matter if the key was in or out. I believe it may be the blower relay gone bad. I pulled the plug out to stop the buzzing and my fan still works with a switch that was wired in years ago.
It no longer kills the battery and everything works...
Finally got to take the Monte out with the 6 speed. Great easy clutch pedal and the pro 5.0 shifter is sweet. No more burning up the old TH350.
