crackedback said

How big is the alternator?

Wire from Alt to continous duty solenoid: 4 or 6 gauge
Wire from CD solenoid to Master disconnect switch: 14-16 Little to no load trigger with key
Wire from CD solenoid to Batt pos or Ford solenoid battery side: 4-6 gauge
Wire from Battery ground to car: I assume 0-1 gauge
Wire from CD solenoid to + on Battery: 4-6 same as wire from cd to ford relay above
Wire from + on battery to Ford Solenoid: 1/0 or bigger
Jumper wire from post to post on Starter: 14
Wire from starter big post to Ford Solenoid: 1/0 or bigger
Wire from Ford solenoid to Mopar relay: 14-16
Wire from Master disconnect to Mopar relay: 8-10

If you pull headlights and electric fans straight off the alt post, that will reduce the load on the wire from the master disconnect to mopar relay.

Visualize the two relays/solenoids stacked on top of each other in the schematic. The alt line runs in one side of the CD relay and you make a short jumper to the battery + side of the ford/jeep starter relay. Makes things a bit cleaner.

Here's a pretty good wire sizing chart.

Click to expand...