I have a 93 civic ex coupe manual. I recently installed 2 6X9 240 watts each and 4 6 1/2's. Their powered by 2 amps one is 400 watts with 4 channels and one 300 watts with two channels. I also have 2 10" subs in the back. After the installation when i turned the headlights on the cars light would dim and ligth back up if i hit the gas. After this happened I had to boost my car to start the next time. After this I stopped using my radio and this stopped happening for a few days. Then if i turn on my headlights it started to happen again. Is it my battery alternator or both?

 

Sounds like your battery.


I had alot more juice going to my setup when I had it and my lights dimmed but never did it tottaly turn my car off.

 

I disconnected the positive terminal from the battery and the car didnt turn off. If its not the alternator than what is it? Why the lights dim and the car almost cuts off till i hit the gas?

 

ok, let me help ya out here with my first post here

this is not an alternator problem it is a charging system problem, the accessories in your car are exceeding your altenator and using part of your battery, what can you do to fix this? install a second battery or install a capacitor for your amp,

im sure somewhere on this site they tell you how to do this

 

you might want to look into getting some kind of capacitor. Ur having a power drain. A capacitor will solve your problem, guaranteed.