4 AWG
Copper-clad aluminum (CCA)
Complete installation kit
$28.95
Power wire gauge
Conductor
Insulation
Power wire length
Ground wire length
Max watts
Fuse holder
Fuse type
Fuse Size
RCA included
RCA Channels
RCA Length
Remote wire
Remote length
Speaker wire
Speaker wire gauge
Speaker wire length
Part number
Sky High Car Audio 4 Gauge CCA Big 3 Upgrade Kit Enhance your vehicle’s electrical system with the Sky High Car Audio 4 Gauge CCA Big 3 Upgrade Kit . Designed to improve power flow and reduce voltage drop, this kit is perfect for maximizing the performance of your car audio system while offering a cost-effective solution. Kit Includes: ? 12 Feet of 4 Gauge CCA Power Wire – Three 4-foot runs for essential Big 3 upgrades ? One End Pre-Terminated – Only one side is crimped with a copper ring terminal , allowing for adjustments if the wire needs to be shortened ? Copper Ring Terminals – High-quality terminals for secure and reliable connections ? Heat Shrink – Provides a clean, professional fini
Not listed
The correct wiring kit depends on the amplifier’s current demand, recommended power-wire gauge and fuse requirements—not wattage alone. Compare the kit specifications with the amplifier manufacturer’s recommendations before ordering.
The included components are listed in the “What’s Included” section above. Review that list carefully because cable lengths, fuse protection, RCA cables, speaker wire and installation hardware can vary between kits.
CCA wire uses copper-clad aluminum conductors, while OFC wire uses oxygen-free copper. OFC offers better conductivity and can carry more current for its size. CCA is a more affordable option but may require a larger gauge to support the same amplifier demand.
Check the amplifier manufacturer’s recommended power-wire gauge and fuse rating. The correct gauge also depends on the amplifier’s current demand and the length of the cable run. When in doubt, moving to a larger OFC cable is generally preferable to using undersized wire.
No. The fuse must protect the power wire while also supporting the connected amplifier. Compare the included fuse with the amplifier manufacturer’s recommended external fuse rating. A different fuse may be required for your specific system.
Install the main fuse holder close to the vehicle battery, before the power wire travels through the vehicle. The exact maximum distance may depend on the installation and applicable rules, but keeping the unfused portion of the cable as short as practical provides better protection.
The power and ground wiring can be used regardless of the radio type, but the amplifier still needs a compatible audio signal. A factory radio may require a line output converter, digital signal processor or an amplifier with speaker-level inputs.
That depends on the combined current demand of the amplifiers and the capacity of the included power wire and fuse. Multi-amplifier systems commonly require larger main power wire, a distribution block and separately fused outputs.
Yes. The amplifier ground connection should normally use the same conductor size and material as the power connection. Keep the ground cable short and attach it securely to clean, bare chassis metal.
A confident installer with the correct tools can complete many basic installations. Disconnect the battery before beginning, protect every cable passing through metal and verify all connections before restoring power. Professional installation is recommended if you are unfamiliar with vehicle electrical systems.
