What is the Big 3 upgrade? I see it referred to when people talk about stereo systems and electrical drains on there truck. What is this upgrade??

 

I'm not quite sure what you mean, "the big 3" is commonly referred to as Intake, Exhaust, and a custom Tune/tuner for the computer. These are the 3 easiest and most common engine mods.

Don't think I've ever heard of a big 3 associated with stereos

 

The BIG 3 are:

1) Battery negative to chassis
2) Alternator to battery positive
3) Chassis to engine


You upgrade these to larger gauge wire to support a large stereo system the exhibits dimming lights with large bass hits. Many people will bandaid this problem with a capacitor.

 

any recommendation on gauge of wire?? That sounds cheap and easy. I already have a cap so doing the Big 3 and a cap is a win/win .. right??

 

Match the gauge wire of you power run. My power run is 1/0 so my big 3 was 1/0. I also used cable from weldingsupply.com, it's alot cheaper than the car audio brands.

I would dump the cap...useless IMHO. They just drain from your electrical system and that's what your trying to avoid.

Do the big 3, add an extra battery if needed, and then maybe a HO alt if you still need more.