head lights dim almost off

A cap is not a cure for anything like this. Think about it..why do you think the cap is installed as close to the amp as possible?

It will not solve the problem of excessive current draw through the amps wire at peak demands..it will help "stabalize" it to the amp..at least in theory..or better put will make up for some of the volatge drop that is lost in the wire for a brief instant..either way the cap still needs the voltage back once its drained..where do you think that voltage comes from..it is not free..it still comes from the charging system when the vehicle is running.

This problem as stated previously is most likey poor wiring that is not up to the demands..and quite possibly a charging system issue as well. All the expensive yellow tops and caps in the world won't solve this.

Upgrade the "big three" and I bet that helps, that car is not known for its wiring. If that does not do enough your alternator/charging system is either defective..or not up to the demands.

agreed as well..but if the joke of a factory wiring that vehicle uses is not upgraded...nothing including an alternator swap will help considering the power demands of that amp.

The lights dimming to almost off is a sure sign of serious voltage drop..sounds to me like there is way too much resistance in the wiring due to it's whimpy size and probably corroded connections as well. And if the alternator/charging system has not crapped out by now due to that..it most likely will soon.

And thank you for listening and agreeing soultinter.

To someone like myself that works on all kinds of cars and systems every day..this is common sense. First off the only complaint..at least at this point is the lights dimming...extremely dimming. He did not say the audio system was cutting off or that the car was not starting in the morning. He also states he has a good battery.

Now I am a absolutly an advocator of upgrading the alternator..but ONLY if really nessecary. Otherwise it is a waste of money. Now I can't say at this point with 100% certainty that the alternator needs to be upgraded. I would want the results of replacing the big 3 first.

what? 1000w rms = 1 farad. 2000 true watts? what? you do know the primary purpose of a battery is to start the vehicle, right? if you're not getting enough power from the alternator then it doesn't matter how many caps or batterys you have. as far as that goes, a battery isn't as good as a cap as in it takes longer for a battery to discharge than a cap so what does it do on those quick hard hits? i think you need to do some research before you advise people to waste money.

oh wait a minute, aren't you the stock boy that hit like a 1000db with an audiopipe 8" that's been in the car audio retail sales world for years and owns his own "custom" shop? yeah, that's what i thought. grow up man.