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Wiring & Power
Keep it clean, keep it loud!
Your system is only as strong as its wiring. At Big Jeff Audio, our Wiring & Power section is stocked with everything you need to power your build the right way. From high-strand OFC power and ground wire to speaker wire, distribution blocks, and circuit protection — we’ve got you covered from front to trunk. Clean installs, consistent voltage, and safe current flow start with quality components.
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essentials
Alternators
High-Output Car Audio Alternators are built to supply consistent, high-current power for demanding audio systems. Designed for daily drivers, demo vehicles, and competition-level builds, these alternators deliver increased amperage at idle and under load, helping eliminate voltage drop, dimming lights, and power loss. Whether you’re running big amplifiers, multiple batteries, or full electrical upgrades, high-output alternators keep your system charged, stable, and ready to perform.
Mechman 400 Amp High Output Alternator for GM 2014-2018 Tahoe Escalade Silverado
$549.00
Mechman 400 Amp High Output Alternator For 96-04 GM Truck 4.3L-6.0L Red
$598.00
Mechman 370 Amp High Output Alternator for Dodge, Chrysler, Challenger, Charger
$599.00
Mechman 320 Amp High Output Alternator GM Suburban Tahoe Escalade 05-13
$519.00
Big 3 Power Upgrade Kits for Car Audio
Full Tilt 0 AWG Red & Black Big 3 Wiring Upgrade Kit for Car Audio
$119.99
Sky High Car Audio BIG 3 Wiring Upgrade Kit OFC 0 Ga Green Power Black Ground
$73.95
Sky High Car Audio BIG 3 Wiring Upgrade Kit OFC 0 Ga Red Power Black Ground
$73.95
XS Power 350-amp 0AWG POWER CELL Wiring Kit Big 3 wiring upgrade BIG3XS
$124.99
Fuses & Fuse Holders
Power & Ground Wire
Upgrade your car audio power delivery with our premium Power & Ground Wire collection, designed to handle everything from basic upgrades to high-output amplifier systems. We offer a broad selection of wire gauges including 0, 4, 8, 14, and 18 AWG, so you can pick the perfect size for your installation—whether it’s a full Big 3 wiring upgrade or smaller accessory runs.
Choose from a variety of lengths to fit any project, from compact 4-foot and 17-foot runs to bulk rolls of 100 feet, 250 feet, or even 500 feet. We stock flexible, durable wire made from top-quality materials like Oxygen-Free Copper (OFC) and Copper Clad Aluminum (CCA), ensuring excellent conductivity and long-lasting reliability.
Our wires come in multiple colors and insulation types to help you organize and customize your build. Trusted by pros and enthusiasts alike, these wires are ideal for delivering clean, stable power to your amplifiers, batteries, and grounding points—improving overall system performance and reducing voltage drop.
Shop trusted brands such as GP Car Audio, Full Tilt Audio, and American Bass for your next car audio wiring upgrade.
Power up your system the right way with Big Jeff Audio’s Power & Ground Wire collection!
GP Car Audio 4 AWG 100% OFC Power/Ground Wire Black Lot Cut By The Foot
$4.95
GP Car Audio 4 AWG 100% OFC Power/Ground Wire Red Lot Cut By The Foot
$4.95
Rockford Fosgate 8 AWG 100% OFC Power/Ground Wire Black Lot Cut By The Foot
$1.49
Rockford Fosgate 0 AWG 100% OFC Power/Ground Wire Black Lot Cut By The Foot
$8.46
Wire Management
Organize, protect, and route wiring cleanly with professional wire management solutions for car audio and automotive installs.
High Temp Cloth Fabric Electrical Wiring Harness Tape 1 Roll 1.2" x 50ft Black
$9.95
Flexible 4 Ft Under Carpet Push Rod/Wire Feeder for Easy Car Audio Installation
$10.95
Big Jeff Audio RCA Cable Clips Wire Management 2 to 20 Pack Red and Black
$4.95
High Temp Cloth Fabric Electrical Wiring Harness Tape 1 roll 3/4" X 50ft
$8.95
Alternators
High-Output Car Audio Alternators are built to supply consistent, high-current power for demanding audio systems. Designed for daily drivers, demo vehicles, and competition-level builds, these alternators deliver increased amperage at idle and under load, helping eliminate voltage drop, dimming lights, and power loss. Whether you’re running big amplifiers, multiple batteries, or full electrical upgrades, high-output alternators keep your system charged, stable, and ready to perform.
Mechman 400 Amp High Output Alternator for GM 2014-2018 Tahoe Escalade Silverado
$549.00
Mechman 400 Amp High Output Alternator For 96-04 GM Truck 4.3L-6.0L Red
$598.00
Mechman 370 Amp High Output Alternator for Dodge, Chrysler, Challenger, Charger
$599.00
Mechman 320 Amp High Output Alternator GM Suburban Tahoe Escalade 05-13
$519.00
Big 3 Power Upgrade Kits for Car Audio
Full Tilt 0 AWG Red & Black Big 3 Wiring Upgrade Kit for Car Audio
$119.99
Sky High Car Audio BIG 3 Wiring Upgrade Kit OFC 0 Ga Green Power Black Ground
$73.95
Sky High Car Audio BIG 3 Wiring Upgrade Kit OFC 0 Ga Red Power Black Ground
$73.95
XS Power 350-amp 0AWG POWER CELL Wiring Kit Big 3 wiring upgrade BIG3XS
$124.99
Fuses & Fuse Holders
Power & Ground Wire
Upgrade your car audio power delivery with our premium Power & Ground Wire collection, designed to handle everything from basic upgrades to high-output amplifier systems. We offer a broad selection of wire gauges including 0, 4, 8, 14, and 18 AWG, so you can pick the perfect size for your installation—whether it’s a full Big 3 wiring upgrade or smaller accessory runs.
Choose from a variety of lengths to fit any project, from compact 4-foot and 17-foot runs to bulk rolls of 100 feet, 250 feet, or even 500 feet. We stock flexible, durable wire made from top-quality materials like Oxygen-Free Copper (OFC) and Copper Clad Aluminum (CCA), ensuring excellent conductivity and long-lasting reliability.
Our wires come in multiple colors and insulation types to help you organize and customize your build. Trusted by pros and enthusiasts alike, these wires are ideal for delivering clean, stable power to your amplifiers, batteries, and grounding points—improving overall system performance and reducing voltage drop.
Shop trusted brands such as GP Car Audio, Full Tilt Audio, and American Bass for your next car audio wiring upgrade.
Power up your system the right way with Big Jeff Audio’s Power & Ground Wire collection!
GP Car Audio 4 AWG 100% OFC Power/Ground Wire Black Lot Cut By The Foot
$4.95
GP Car Audio 4 AWG 100% OFC Power/Ground Wire Red Lot Cut By The Foot
$4.95
Rockford Fosgate 8 AWG 100% OFC Power/Ground Wire Black Lot Cut By The Foot
$1.49
Rockford Fosgate 0 AWG 100% OFC Power/Ground Wire Black Lot Cut By The Foot
$8.46
Wire Management
Organize, protect, and route wiring cleanly with professional wire management solutions for car audio and automotive installs.
High Temp Cloth Fabric Electrical Wiring Harness Tape 1 Roll 1.2" x 50ft Black
$9.95
Flexible 4 Ft Under Carpet Push Rod/Wire Feeder for Easy Car Audio Installation
$10.95
Big Jeff Audio RCA Cable Clips Wire Management 2 to 20 Pack Red and Black
$4.95
High Temp Cloth Fabric Electrical Wiring Harness Tape 1 roll 3/4" X 50ft
$8.95