Main battery live

[Ivan141]

The alternator feed is a big white wire in the engine loom, separate from the starter cable.
The only thing in the starter cable loom is the power cable and a much smaller black start signal cable.
All of these things attach to the battery terminal through fusible links. You need to figure out where the battery was separated from the rest of the car. To me it would make the most sense if someone routed a fat cable from the battery terminal to the cutoff switch and back again to somewhere near the battery terminal and attached it to the fusible links somehow.