4 15''s P2 running 350-400RMS. will it crack my windows, just one does alot of rattling of the trunk so i was wondering?thkz i know 4 sure i am getting a red top battery. should i change the alt. also. how bout a digital cap.?
You got 4 15's that run about 400 watts each, right? If so you shouldn't have a problem with cracked windows. It takes a lot of pressure inside a car to do something like that and I doubt your system will do more then just rattle the crap out of your car.
You should get the red top. Forget about the cap, you really don't need it. I would invest in a new alternator if you have dimming lights.