rookie question but...anyone chime in

[Joe562MMA 10+ year member]

I recently got a system put in my altima nothing major got 2 runs of positive to back battery ... are the 2 negative runs just as important? ? I seem to think so but not why exactly ...they grounded my back battery straight 2 chasis instead of 2 negative ones ..

xs battery up front xs 2400 in back brz 2500 on 2 american bass xfls my voltage dips so im assuming its the lack of good ground well that and im gonna be replacing alternator soon

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[supra1987]

I'm of the opinion you should match runs.

 

[C1500martin 10+ year member]

yes match runs

 

[mylows10 5,000+ posts]

The unibody cars are not good cars for grounds. Basically a tin can. That's why the runs and then go to the stock ground locations with 0 gauge wire as well