Salutations, i recently installed a JL 100v1 amp along with 1-13W7 sub in a ported enclosure, 0 gauage upgrade, the big 3 upgrade, added another battery in the trunk and added a 40 farad cap, and when i have the vol at thirty my head lights, and my tail lights begin to blink when the bass hits, and the louder the volume the more it blinks. Can someone plz advise me how to fix this problem, thank you

 

Need more details.

What make and model car, is car running or off, did you have it professionally installed or was it a DIY, etc?

 

You need to check the resistance on the ground return from the amp to the battery, my bet is that it is higher than a crack who got free "candy". This is the Big 4 wire. Next, you have a classic case of expecting too much from too little. You can do (and should do) all you can to deliver current to the amp as efficiently as possible, the problem is that your alternator cannot keep up with the demand that you are placing on it. Your alternator was designed to run the vehicle with a little extra left over, not the vehicle and a big time current drain under constant use like a stereo. Time to start looking at a purpose built alternator.

 

Well the car is a 98 Honda civic si, and the install is a DIYer

 

Pls do explain about the "big 4 wire" and the resistance between the ground and the amp return plz

 

You can have an extra battery and a big cap but eventually you will out run the alternator's ability to renew the energy you are displacing. Add that to your factory alternator being on the tiny side and you're left with looking at a replacement for sure.

 

This link will take you to a post I wrote up many years ago for another site, as it is tech related I beleive the site should have no issues with it being posted.

http://www.the12volt.com/installbay/...TID~49445~PN~1

 

Thanks, but is there a video showing how to measure the resistance of the ground wire?

 

take a multimeter, set it to measure resistance (omega symbol) and touch the 2 points where you want to take your reading