Battery cables.
#7
#1. #2. 6. 6 liter diesel. 6. 6 liter gas. Alternator jumper. Aux battery jumper. Main battery. Primary battery. Primary batttery. Starter. W/AUXILIARY battery. W/DUAL alternator.
6.6 liter diesel. aux battery jumper. W/AUXILIARY BATTERY. W/DUAL ALTERNATOR.