New system help?

[94retta(219)]

Okay so im sort of planing my new system out. its going to be a AQ2200d with Rf t600.4, head unit and blah blah. not sure on woofer config yet? either a Fi btl n2 or n3 18? money allowing. but my question is in the wireing. iv got a yellow top up front, planing on doing the big three. thinking about adding another batt in the back prolly a kinetic800? im going to use Knuconcepts 1/0 but when wire batts +together do i run a set of + and - to the back or can i just run + to the back and use the ground to the back batt as normal with the same quality?

[keepinitloud]

some people do some don't I'm sure a few people will chime in on this and say whether they do or not its up to you just as long as the grounds are on a solid part of the body your good to go in my opinion

[94retta(219)]

Yeah, i thought about maybe doing both? but im not sure if that will make a ground loop and noise? still a noop on wire..