Obviously, in the process of installing a new sound system, you should upgrade the electrical system when necessary. So, I plan on adding a two channel amp to power my frontstage, and another amp to power my sub. I might possibly go with one 4-channel to power everything, however, that is unlikely. Now, will my electrical system be fine if I do the "Big 3" using 0 awg wire? Will I need to do anything else? Let me know if there is any tricks that will help me out. Thanks guys.