trimming the 4 gauge to fit is just as bad b/c its like a water hose. all that current thru the regular open hose then squeezing the end it'll end up burning the wire(where it enters the amp) best thing to do is either get the reducers from 4 to 8 gauge or run the 1 distro block needed. dont need the negative cuz ur only running 8 gauge into the amp so you only need 8 gauge coming out.
