Firstly I am not trying to correct you, I am informing the forum how to find where the fault is.
I am not talking about the trigger wire, I am talking about measuring the voltage drop
first from the battery negative terminal to the starter,
next from the positive terminal to the power stud at the starter, this 30 second job that will find any earth or power lead fault.
I am also just trying to help the car owner as it seems everyone has an opinion.