where is the megafuse? is it in-line with the harness and covered in elec tape?
i took the car to goodyear, and they say that the alternator is bad. it measured 13.5 Volts but was exhibiting a "ripple" charge or something to do with the waveform not being currect.
elsewhere i have read that the altenator output may be smoothed by modifying the voltage sensor (regulator?), as in the image below:
