big 3

[nike 10+ year member]

im sorry im no expert in caraudio but i like alot but what is a "big 3 "

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[johnecon2001 5,000+ posts]

Have you tried searching for it?

 

[slicks5150 10+ year member]

the big 3 are the wires under your hood that run to your chassis, the alt, and the engine. .. some say just replace with 1/0 wires some say run the 1/0 with the existing stock wires together . . .I cant tell you for sure which is better or more effective or anything as I am not an authority on this, but someone will help you I'm sure.