Ok So just wannt say what ups and good to be a part of the forum. Well this is my project and i'm trying to get some advice/help on what i should do. I have an 03' G35 With 2 Alpine type X 10's in a custom box with 2 Alpine MRD-M1005 for each Sub. I am using the stock HU and will be using a LOC and a PAC Level Controller for amps..My question is...Well how should i do this?? What size guage wires should i use? Should i do the Big 3 before i start and will getting another battery in the trunk help me out..and Well Where do i start? If someone could answer those questions or point me in the right direction it would be helpful..Thanks in Advance