ok, so when my alternator is wired in, it's overcharging the system, which could explain why it fried my computer... however. we messured the volts in accessory, and the alternator output. the alternator is charging the battery up to about 19volts and the rest of the system to about 17.5-18.

we're gonna try swapping out the resister on the alternator(or whatever its called lol) but does anyone have input on the issue??