What gauge wire for Installation. 1500 max and 750 rms x 2 speakers and the amp is 1500 rms x 1 channel.
4 awg seems right to me too unless you plan to upgrade later anyway, Might as well go with zero awg right off the bat
I'd do 0 gauge...give you some headroom for more upgrades...but 4 gauge will work if you can't get 0 awg