It is important to get the ground on the right spot. So which part is bad, the one to the frame or engine or alternator? The part from Toyota is best, I have had awful experience from aftermarket.
What you need to understand is the car is the return for the negative and the alternator. Please be careful, Genius
reversed the cables jumping him. While the computer blew first trying to save the fuse, the main fuse turned to power. I set the engine fuse box on fire and at the gas pump. See God looks after morons and old crew chiefs.
Let me know how it goes.