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wiring up components

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=134477
Printed Date: July 19, 2025 at 4:00 AM


Topic: wiring up components

Posted By: 07h2
Subject: wiring up components
Date Posted: July 04, 2013 at 11:22 AM

Hi,

I'm new to DIY car stereo install. What I'm trying to do is install an Ar ride compressor and two car stereo amps, all running from the battery under the hood. The battery is a Optima red top and the alternator is upgraded to a higher amp. What additional components will I need? I plan on using 0 gauge from the battery to distributor block and then 4 gauge to the components.




Replies:

Posted By: DYohn
Date Posted: July 04, 2013 at 1:09 PM
Be sure to fuse the 0-gauge at the battery and the 4-gauge at the distro block to protect the wire from overload. See the Wire Sizes link to the left.

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Posted By: 07h2
Date Posted: July 04, 2013 at 1:22 PM

Do I need a  RELAY/BATTERY ISOLATOR ?




Posted By: DYohn
Date Posted: July 04, 2013 at 1:39 PM
07h2] wrote:

Do I need a  RELAY/BATTERY ISOLATOR ?



Your vehicle only has one battery, correct? Then no.

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Posted By: oldspark
Date Posted: July 04, 2013 at 9:01 PM
If you want best battery life I'd recommend a normal (wet cell) cranking battery under the hood (AGMs don't like cranking).

An AGM (eg, the red) could be added/used as an internally mounted 2nd battery for the audio via a battery isolator.


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