so i was doing some work on my car, and i layed my wrench down. weel the wrech made contact between the hot wire on the alternator and the head.i quickly snacthed it up. i saw some smoke come out off the relay box and now i have no power at all. i replaced the efi main relay, and all the fuses are good. but still i have no power. i mean none at all, no radio, no lights, no anything. when i pulled the + wire off the battery and put it back on, i got no spark like normal. i tested the battery with a volt meter and got 12.7 volts. so please help.