You need a 2 farad capacitor to maintain voltage with your 1200 watt amp.

 

ok I just purchased a 4-farad capacitor. It should be here in 4 - 5 business days... When i have it installed i will come back and let you know the outcome. Thanks every one.

 

I have a 1.5 farad cap for my 900 watt rms system. I figured 2 farad would suffice.

 

Ok update. The 4 farad capacitor does work to an extent. lights still dim when I have the bass turned all the way up and the sound on full. But it does help to the point where i can turn the bass down a little bit and they wont dim. The 07 pacifica just has a horrible alternator. Will be looking into a high output alternator in the near future... thanks guys !

 

What size power and ground wire did you use, and what brand amp is it? I have an 05 with about 1500 watts total to a 18" sub with min dim of lights no caps

 

www.crutchfield.com has lots of good info about building systems and car specific info for installs.

 

Hello. My chat went down a while back and Im needing help to get it back up.I still have all my files and i havent changed any of them since the chat went down.Im thinking i just need to reinstal the chat to fix it. But I cant seem to understan the instructions all that well and I cant remember how to open my admin panel.Also, I reregistered here because my old email went down and im not sure if that changes anything.OK, first, I just need to know how to get to my admin panel and reinstal my chat. I might need to change some files since ive reregistered here, again, not sure.Any help would be much appreciated.

 

Sorry guys got into a bad car accident cause granny turned in front of me. She's not dead but she did get the ticket and my pacifica is totalled. Now I got an 08 300c with the digital ignition chip