How To Install The Big 3 Upgrade | Improve Your Vehicle’s Electrical Charging System | Car Audio


Shop for Big 3 Upgrade kits:
The Big 3 Upgrade improves your vehicles charging system, giving all it’s electrical equipment the current it needs to perform it’s best.

Anyone with an amplified aftermarket car audio system, especially those over 1000 Watts, should seriously consider performing this upgrade. If you’ve noticed dimming headlights, slow window roll down speeds, or voltage drops it’s time to do a Big 3 Upgrade.

Wires to Upgrade / Installation Steps:
1. Alternator charging wire to Battery positive
2. Battery negative to chassis ground wire
3. Engine Block to chassis ground wire

1/0 Gauge wire is recommended as it will provide the lowest resistance and potential current flow, but any size larger than the factory wires will be an improvement.

OFC (Oxygen Free Copper) wire is always recommended over CCA (Copper Clad Aluminum) because of it’s superior conductivity and corrosion resistance.

Examine your vehicle before purchasing an Big 3 Upgrade kit to make sure you have all the necessary tools to do that job, and that you buy the correct length of wire.
*Keep in mind that some car’s batteries are located in the trunk of the vehicle, these will require longer runs of wire.*

Installation Tools and Accessories:

More information on the Big 3 Upgrade:

– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

Sonic Electronix always strives to be the premiere online shopping destination for car electronics and other consumer electronics. Our slogan is “The X-Factor When Shopping for Electronics” and it is our goal to be just that. We’re here to help you find solutions and great prices without sacrificing service.

Our Store:

Our Facebook:

Our Twitter:

Our Instagram:

– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

Big 3 Upgrade step by step

Leave a Reply

Your email address will not be published. Required fields are marked *