Official CarAudio.com Big 3 Thread

[TripKore 10+ year member]

Hey, I'm actually gonna have some time soon to do the Big 3.

I was wondering if anyone know a good place online to buy wire.

And what type of wire would be the best?

if it's be discussed in the past, sorry.

 

[AlterEgo99 5,000+ posts]

Hey, I'm actually gonna have some time soon to do the Big 3.I was wondering if anyone know a good place online to buy wire.

And what type of wire would be the best?

if it's be discussed in the past, sorry.

I like the Knu wire...a bit pricey but good shit.

 

[imbored408 10+ year member]

i know

pos from alt to pos on battery

neg on battery to chassis

i am not sure on the third one. I have seen chassis to engine and neg battery to engine as well.

What one am I supposed to do or are they both the same?

So could I either do

Strut tower to engine

or

Neg terminal to engine?

 

[Kangaroux 5,000+ posts]

Instead of trying to remember what 3 you need to do it's more helpful to know exactly why you're doing each one.

1. Alt pos to battery pos -- the only positive run for the big 3 and is necessary to supply current to the rest of your system.

2. Vehicle chassis to battery neg -- your vehicle's chassis/frame needs to be grounded as that's what multiple electrical components both factory and aftermarket use.

3. Alt casing/Engine block to battery neg -- in order for your alternator to charge it needs a grounding point. The casing on the alt is used as a ground. Most people will attach a wire to the engine block because the alt is bolted onto the engine block. For minimum resistance, find a bolt that is NOT the alternator positive terminal, and attach it there.

 

[LA951 10+ year member]

hay wat about a 01 GMC truck?? wires look good but idk alot of electronics do i just add it?? mainly cus i want to run 2 alpine mr m2000 and a third amp for the speakers how should i do it??

 

[Kangaroux 5,000+ posts]

hay wat about a 01 GMC truck?? wires look good but idk alot of electronics do i just add it?? mainly cus i want to run 2 alpine mr m2000 and a third amp for the speakers how should i do it??

Just adding it should be fine. I hope you're either getting a shit load of batteries or a HO alt for that much power

 

[LA951 10+ year member]

probly both dude so it evans out

 

[LA951 10+ year member]

that and putting a bat for each amp instead of a cap seeing that they dont help anyways

 

[Tek18 10+ year member]

sadly pics don't work for me? //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

 

[brodeisel 10+ year member]

nor me

 

[slim217 10+ year member]

so can i use the same fuse between alt and bat as the one goin from bat to amp

 

[helotr3vor 10+ year member]

Has anyone done the Big 3 on B8 Audi's? Preferably A4. Mine is 2010 and I need allot of help.

 

[Doctor Rockso 10+ year member]

will these bolts work to do the engine ground?

 

[702cody 10+ year member]

just curious as to what everyone does with the stock electrical when they do the big three. i plan on ordering some tool maker parts but just wanted to hear what people do with the stock electrical since it already has terminals to fit on the stock battery post..

 

[jasoncmarsh]

can someone explain where exactly to connect wires to a 2001 malibu to do the big 3?