Get the ultimate electrical foundation for your car audio system with the GP Car Audio Amp Kit + Big 3 Upgrade Combo — hand‑built to order using TRUE 1/0 AWG Ultra Pure OFHC Copper, manufactured in the USA and built to SAE J378C / J1127 certified standards. No CCA. No inflated specs. No gimmicks. Just real copper, real performance, and real results.
This all‑in‑one package gives you everything needed to power your amplifier and upgrade your vehicle’s charging system for maximum voltage stability and amplifier output.
Fast & Free Shipping — Hand‑built with our 22‑ton hydraulic crimper.
• Stronger voltage stability under load • Higher amplifier performance & cleaner output • Reduced headlight dimming • Improved charging system efficiency • Lower resistance = less heat, more reliability • A complete, matched electrical upgrade — not a mix‑and‑match kit
If you’re running aftermarket audio, this is the upgrade your system needs.
All power and ground cables in this kit use 99.99% OFHC (Oxygen Free High Conductivity) pure copper, delivering:
• Maximum current flow • Ultra‑low resistance • Excellent flexibility • Consistent performance under heavy load
This is real spec 1/0 AWG, not oversized insulation hiding tiny imported strands.
• Verified copper purity • Correct conductor size & strand count • High‑temperature insulation durability • Resistance to abrasion, chemicals, and vibration • Safe performance in under‑hood and marine environments
This is OEM‑grade cable — not hobby‑grade import wire.
• 1× 4 ft 1/0 AWG Blue Power Cable • 2× 4 ft 1/0 AWG Black Ground Cables • 6× 1/0 AWG Pure Copper Lugs • 6× GP ’MERICA Heat Shrink (Blue & Black)
Each Big 3 cable is cold‑welded / hydraulic‑crimped on one end using our 22‑ton crimper for maximum conductivity and reliability.
• 17 ft 1/0 AWG OFHC Blue Power Wire – One end cold‑welded / hydraulic‑crimped
• 3 ft 1/0 AWG OFHC Black Ground Wire – One end cold‑welded / hydraulic‑crimped
• 17 ft 14 AWG Remote Wire
• GP 24k Gold‑Plated ANL Fuse Block – Includes 2 lugs + blue heat shrink
• GP High‑Quality Ceramic ANL Fuse — 350A (Need a different fuse size? Leave a note in the order comments.)
• TRUE 1/0 AWG OFHC copper — no CCA • SAE J378C / J1127 certified cable • Ultra‑flexible jacket for easy routing • High strand count for maximum conductivity • Cold‑welded ends for unmatched reliability • Includes lugs, heat shrink, fuse block, and fuse • Perfect for high‑output alternators & aftermarket audio • Hand‑built to order in the USA
If you’re tired of weak wiring kits, undersized conductors, and CCA pretending to be copper, the GP Amp Kit + Big 3 Upgrade gives your system the electrical backbone it deserves.
No BS. No inflated specs. Just real copper, real standards, and real results — the GP way.