The positive cables lead to the starter solenoid on the starter, and another cable leads to the fender relay near the hood.
On the solenoid should be a small wire, it runs back up to the fender relay. You should also have a large black cable on the the starter which is your ground.
96 300ci M5OD 2wd Reg Cab Long Bed 3.31 LS Gears and 8-Track player
A question that sometimes drives me hazy: am I or are the others crazy?