Help! Big 3 on a 2012 scion xb

[Mike17em]

I'm getting ready to install my wiring and doing the big 3 at the same time.. Should I add wire for the big 3 or just remove the old wires completely. does any one else own a newer style scion XB that has done the big 3 ? All the help I can get would be great Thanks! I'm using 0gauge knukonceptz kolossus wire in case ur wondering

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[jasonbillnelson 10+ year member]

just add. don't swap out completely

 

[gckless 5,000+ posts]

Normally you can remove the stock engine block to frame (or battery negative, wherever it goes) ground, since there's only one wire. But the other two off the battery you will want to add to, because there's usually a couple wires off those.

 

[Mike17em]

Add only then ?

 

[LosIsATool 5,000+ posts]

Don't remove, it could throw codes if its ran through the computer. It will only help not hinder.

 

[Mike17em]

Don't remove, it could throw codes if its ran through the computer. It will only help not hinder.

Ill just add wire then thanks