2010 12v Fummins
Also I forgot to mention earlier that when I have the battery’s hooked up and everything going and powered on, my key when I turn it to the off position nothing turns off my radio, dash lights, interior lights, etc everything still has power with the key off and the only way I can turn everything off is unhooking the battery

so that info is likely your "smoking gun" first thing is to find that issue or it might be easier to send out the harness and get it done. Kevin Nohl at kevin@kjnrepair.com