I just bougtt a 1991 Celica GT Convertible as a slight project car. It doesn't have a ton wrong with it. However, it has a parasitic draw. I have some knowledge of how to trace this but have run into a sticking point. The charging system draws roughly 14V all the time. When I pull the 100amp charging system fuse in main box draw goes to 0. I pulled every fuse both under the hood and in the car. This is the only fuse that has any effect. I tried disconnecting both the wiring harness and ground to the alternator and that made no change. Suggestions?