hello i want to upgrade my electrical system in my 2004 f150 new body style. my lights keep on dimming due to my stereo system so i wanted to do the big 3 and also add another battery. i want to keep my stock battery and maybe just buy another similar one? is that a good idea? also where can i get some pics of the big three. and what size wire would be a good to use if i have a double 0 cable going to the distributor for my amps. and what are the steps i tried to do some searchign but i had no luck. thanks for all the help......

 

About the only way to keep the lights from dimming is to install a capacitor to add voltage stability during the power excursions caused by the subwoofers.