Maybe I missed this and I apologize if I did but have you taken off your Edge Attitude with Juice. basically, you added another computer to your electrical system. Now Your battery voltage fluctuates, weird electrical issues, killed 2 batteries and 2 alternators, dome lights, power windows, headlights etc etc You replaced a fuse when the car was hot and it immediately blew. The shop cannot duplicate it and I would bet the engine is not hot when they test it.There are all kind of screwy things that happen with a circuit board. Seems like your short varies within a few circuits. Whats connected to all of them that was not before. Seems like you're treating symptoms and not the disease Had a brand new Accord one time. If you drove it at least 30 miles and then drove home-while making a left turn the car would cut off and would do nothing. I had to diagnose the thing-they were trying to impress me with putting on a new alternator on a new car since they didn't make re manufactured ones yet. One day it did it (after 4 trips to Honda dealership) and I just sat in the car for about 5 mins and let it cool off,,started right up...classic crack in a circuit board. Turned out to be the main relay for the whole freaking car. They had to call Japan. It would have been entertaining had it not been happening to me.