what in the hell?you should take ur car to a dealer..
you don't wire one alt to the normal cars function and the other to the secondary..
it's a huge waste and if you do you have to isolate the sources..
you don't need to run multipul runs of wire to the back..
use the correct size wire and then use fused distribution blocks to wire your devices..
you don't have to fuse between the alt and batteries..
you could use 2/0 wire from the alt and 4/0 between the batteries and 4/0 to the rear to power the sub amp along with the other amps..
lol hmmm....that is the biggest bunch of horsecrap i have ever heard sir......
4ga. wire for 4000 watts huh? lol...wtf u smokin?
Dual charging systems is a excellent idea when im running as much electronics and peripherals as I am and I see no waste at all unless you mean the 10% capacity that the stock alt. has to give my audio after the vehicles load....
And 10% copper 90% CCA is rated for 250A....so yes I am running double runs to account for the capacity shortage....half the cost of 100% OFC and will have a larger load capacity.
AND ALL OF THE WIRE THAT I AM USING IS THE CORRECT SIZE..........how do you figure it is not???
Why would you not fuse between the alternator and batteries?? Does not hurt a **** thing except add circuit protection......so you are telling me that you do your BIG 3 upgrade with no fuse on the alternator to battery wire? Same thing. Anything will work WITHOUT a fuse....but why when its cheap and easy and peace of mind??
The only thing that u said that comes close to anything resembling CORRECT is maybe using 4/0 between the batteries.....but again why?? I have plenty of 1/0 so why would i not use that....makes no sense and amazes me that you would take the time to tell me that i need to use 4/0 instead of 1/0 on two 12" pieces of wire.....lol jeezus
lets just assume from now on that when i post looking for advice or anything for that matter....that i am not wanting it from you....
everytime you comment it is dripping with negativity and you try and be-little anything anyone else might be doing or installing.
have a good day sir