I believe so. Are you running a second battery? If not, consider this. The Z7000 has an external fuse. They chose to mount inline rather than in amp. The fuseblock it comes with is 2 Ga in and 4 Ga out. If you are running only 1 battery, and are running long wires, prepare to wire with 2 Ga to each Z.
Here are my plans, tell me what you think. Running 2 extra batteries. Running 0 awg from under the hood back to the trunk(batteries). Than split that to 4 awg to the amps. I was just curious, because it mentioned in the Amp manuals that you should use 2 awg or maybe I misread it. Thanks.
That is in response to the 2 Ga statement. Look at the block and you will see what I mean. If you're using an isolator under the hood, I reccomend 2Ga to the rear batteries if you are dead set on 2 extras. I have 1 extra and a 120Amp alt and isolator and I use 4 gauge.
