Installing ignition relay

That may be true, but there won’t be any significant current travelling through that wire.



Yes, I stated clearly it is a voltage drop in the ignition circuit.



Adding a relay to the ignition circuit will fix the problem, and that was the initial question posed in the thread.



Not sure how I can help with that, hire a tutor maybe?

Voltage drops on the ground side cause over charging and voltage drops of the positive side cause undercharging. You're overcharging so you should be looking at your ground circuits. But it sounds like you have it all figured out. So much so that you have to ask for help on here and then be rude to the people who try to help you out. Good luck.