How to Upgrade the Big Three

just so i'm totally clear the 3 wires your upgrading are

1) Battery to ground

2)alternator to battery

3) alternator case to ground

With my '88 Crown Vic, I seem to be getting sufficient power already to my electronics. No caps and 3 amps in my system. Minimal headlight dims @ night compared to what I've seen in others'. Will the Big 3 do anything for me at all and if I'm getting  around 13 for each of the amps, should I try for the Big 3 to get more, or is it overkill?

I have a 99 toyota truck that comes with a 70 amp alt. I am going to do the big three, but have a question in that regard. From what i can tell the output from the alternator runs directly to the fuse box under the hood. If i run power directly from the alt to the battery does that cause some kind of power problems? Also, do I need to put a fuse between the alternator output and the the battery.  Im looking at the big three to stop dimming in my headlights when the stereo is turned up. **alpine 9885 tuner, alpine mrv545 amp, 10 inch p3 sub, and infinity perfects. The amp is working hard  as the p3 and the perfects are power hungry. I may add an amp later for the sub..... My battery is stock or a replacment of lkq.

Thanks

I too want to upgrade to the Big 3 in my '90 Ford PGT. The problem i'm having is the alternator not charging the battery due to the stator wire not being plugged up. I can't seem to find it anywhere in the vehicle. Can anyone please help me out to determine where I'd possibly find this wire.

Nevermind... found out that THIS alternator was for the automatic.  The manual GT didn't have the stator wire as the alternator itself was of a "self-excited" make.   

Hey i just got an alpine 12 inch type r with a MRP 500 500watt alpine amp with a rockford 1 farad capacitor installed in my 08 civic lx and i was told by the people who work at best buy that the capacitor makes it sound better and would prevent making my lights dim. When i play something with hard hitting bass my lights dim slightly but nothing like u would notice right away, u really have to look at it to see it. I am extremely new to car audio and hardly know anything about it. Please help me out because when i look trough forums people say you need a cap but i do or a new battery and alt. But i hear that you need to change those out for a very powerful systems like something around 1000watts or more. I really need help because i do not want this to damage my alt if thats possible.

Also my sub is connect to my stock radio system for now if that makes a difference. I plan to change the rest out once i get over this problem. I heard of people doing a big 3 will this help? Also im wondering which deck i should get and which 6 1/2 speakers to use to replace stock speakers.

Heres the links to the main components i have.

< color=#003399>http://www.alpine-usa.com/US-en/products/product.php?model=MRP-M500&lang=en&tab=F

< color=#003399>http://www.bestbuy.com/site/olspage.jsp?skuId=8286482&productCategoryId=abcat0307008&type=product&tab=1&id=1172880157454#productdetail

< color=#003399>http://www.bestbuy.com/site/olspage.jsp?skuId=7008542&st=q+logic&lp=3&type=product&cp=1&id=1099392684268