Official CarAudio.com Big 3 Thread

[johnecon2001]

Can you use both top-terminals and side-post terminals on the same battery?

Eg.; have a distrobution terminal on the top of the battery which goes to the car accessories, and also to the amps in the back, while using the positive side-post terminal to connect the big-3 alternator-to-battery cabling?

Thanks!

That's fine. They're all hooked together internally. Just like having a built in distro block in the battery.

[lil azn 06]

Hey John,

You got pics of your alternator connection? Just curious if your Honda's alt location is the same as mine. How did you wire it? Did you have to go underneath the car or remove anything?

[johnecon2001]

Theres one up there.. not real descriptive though.

The bolt has a plastic collar on it that you'll need to break off to fit another ring terminal on there.

Most Honda's are the same. I could reach it from the top. It was a real bitoch though

[lil azn 06]

nm

[Bay Area]

Should I even buy a wire crimper to do the Big 3? I don't own one and I don't want to mess things up by crimping through a more ghetto way like a table vice.

[lilmaniac2]

hammer + anvil = much better connection than a vice

[lil azn 06]

Ive done alt to battery, battery to audio, but not the chassis to ground. I was wondering if it would be best to ground from the alt chassis to the battery. This is because i remember hearing the chassis is really only = to 4 awg and either way with a wire or without, there is resistance.

[johnecon2001]

Ive done alt to battery, battery to audio, but not the chassis to ground. I was wondering if it would be best to ground from the alt chassis to the battery. This is because i remember hearing the chassis is really only = to 4 awg and either way with a wire or without, there is resistance.

Your alt is already grounded through the engine block.
The ground points that everyone is using have resulted the greatest results vs other points.

[lil azn 06]

should i ground from block to battery then?

[Decado]

Should I even buy a wire crimper to do the Big 3? I don't own one and I don't want to mess things up by crimping through a more ghetto way like a table vice.

https://weldingsupply.securesites.co...:OR:terms::PA3
Check out the lenco swedge-on tool a few scrolls down the page, works great.

[BrianT]

sorry for the ignorance, but I am learning...what is the exact name for this...



thanks

[lil azn 06]

sorry for the ignorance, but I am learning...what is the exact name for this...



thanks

Its a battery terminal but that one has a fused output as tell, the TMC 902.k i believe which isnt made no more.

[BrianT]

thanks, I assume its not necessary?

[Decado]

thanks, I assume its not necessary?

Lol, a battery terminal is absolutely necessary.

[BrianT]

i dont mean the terminal itself, but that unit with the fuse