I purchased about 15ft of Kicker Hyperflex 0 gauge to do the BIG 3 and the wire was MUCH bigger than expected. I had never dealt with 0 gague wire up until this point. I attempted the install with the wire but had difficulty due to its large size a tightness of my engine bay in addition to the awkward location of my alternator ('08 Altima 3.5SE). So I was just curious to know if using 4 gauge or 2 gauge wire would be sufficient since it will still be at least twice the size of stock? It will be 100% OFC, none of that aluminum clad stuff.

Background info on my system is a Sundown SAE-1000D powering a 12" Havoc and a 4-channel Kenwood eXcelon powering my Ininity Kappa components. I experience slight headlight dimming at high volume. I have a Duralast Gold under the hood, which was the biggest batt I could get due to the opposite placement of the Altima's batt terminals. And I also have a Kinetik HC600 in the rear. My current power and ground wire is 2 gaguge Rockford Fosgate.

Thanks

I have seen people do 2 to 3 run's of smaller wire from the alt. Not sure if this helps you.

Depending on your amps power draw. There is no harm in using 4 gauge, still better than stock.

Depending on your amps power draw. There is no harm in using 4 gauge, still better than stock.

Thats what I was thinking. Any other input?

Just fit the largest wire you can. Most stock wire is 8 gauge, so anything better than that helps.

Thanks guys for the quick and useful feedback. Any recommendations on best brands for flexible 100% OFC wire????

I have about 1825 watts(SAZ1500D,Orion 5004, and Eclipse 200 watt stereo Class D amp) and I use stinger hpm 4 gauge wire for the big 3. No big electrical issues here. Stinger, knukonceptz, RF, lotsa decent flexible brands out there that can do the trick.

I have about 1825 watts(SAZ1500D,Orion 5004, and Eclipse 200 watt stereo Class D amp) and I use stinger hpm 4 gauge wire for the big 3. No big electrical issues here. Stinger, knukonceptz, RF, lotsa decent flexible brands out there that can do the trick.

Any dimming at all with that SAZ-1500D???? I am thinking about stepping up from the SAE-1000D, or maybe to the SAE-1200D. What is your current electrical setup?

with my Nine.1 and a 300 watt amp for my highs the dimming is not bad at all and I only have a single run of 4 gauge wire for the alt to battery

Does the fuse on the alternator to batt+ go closer to the alternator or battery? Also, what size fuse should be used? Thanks.