Im gonna use 2 amps in my car one is a 500.1 jl mono amp and the other will be some 4 channel amp that will be probably 60-75 rms a channel. Im gonna use all 4 for my speakers. Can i use different gauge wires say 4 gauge from the battery to the distribution block then 8gauge to the amps. same for the ground. What gauge wires should i use for everything.