I just put on my new 180a alternator. Works great. First one Ive had in this truck that didnt whine, including the 3 factory units. Is the stock charging wire good enough or should I put on a bigger one like a 4ga? I think it has a 6ga. Also, wheres the best place to wire the electric fans pos. lead? The battery, alternator or distribution center on the firewall I want to make sure the fan gets the most juice when its on high. Right now I have it wired to the battery.