Ok I got some cash and think i need to upgrade my power wire to 1/0 guage from 4 guage. I got a 1200watt amp and it's getting 4 guage wire. I'm getting pretty bad voltage drops at stop lights when the engine isn't revving. The 4 guage i have has to run the length of my huge arse suburban so i think the 1/0 is needed. How much would it help with voltage drops. And also would it make a difference if i didn't upgrade the big 3 but just the power wire. What kind of fuse holder and fuse would i need for this new 1/0 wire. Right now i have a 60 amp fuse.