Crown Victoria Electrical

[Adolfo Acosta]

Hello guys, I need help with my electrical on my 2009 Ford Crown Victoria, V8 4.6L Police Interceptor package.

Right now I have a stock alternator, big 3 upgrade using ofc wire and fuses, and a xs power d3400 under the hood.

I'm planning on running a Crescendo Audio s800.4, s550.2 , & a Sundown Audio SCV-4000D.

Will my electrical handle it after I swap out the stock alt for a mechman 250amp alt (biggest alt mechman carries) and add two xs xp3000 batteries in the trunk?

If it does handle it, how do I run this set up?

I plan on running 1 positive 0-gauge wire to a fuse, then to the main battery. Another run from the main battery to a fuse, then another fuse before the 2nd battery in the trunk, from there I run it to my 3rd battery using another fuse before connecting it.

Once connected to my battery terminal, do I need to fuse all my runs to the amps?

Will one cable from the main to the back be enough?

I'll be doing the same with a negative wire but no fuses. Is one run of negative wire enough?

Thank you for any advice or opinions.

[MrSkippyJ]

You want to fuse any wire connecting to a battery as close to the battery as possible.

I would use 2 wires to connect the front and back, might be overkill but it won't hurt anything.