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Amazon.com: InstallGear 4 Gauge Wire (50ft) Copper Clad Aluminum CAA - Primary Automotive Wire, Car Amplifier Power & Ground Cable, Battery Cable, Car Audio Speaker Stereo, RV Trailer Wiring Welding Cable 4ga :
![Southwire 25-ft 4-Gauge Solid Soft Drawn Copper Bare Wire (By-the-Roll) in the Ground Wire department at Lowes.com Southwire 25-ft 4-Gauge Solid Soft Drawn Copper Bare Wire (By-the-Roll) in the Ground Wire department at Lowes.com](https://mobileimages.lowes.com/productimages/038763ed-b1f9-4840-9c78-3009afb793bd/00539654.jpg?size=pdhism)
Southwire 25-ft 4-Gauge Solid Soft Drawn Copper Bare Wire (By-the-Roll) in the Ground Wire department at Lowes.com
![Crutchfield Black Ground Wire (4-gauge) Available in 4 different sizes — priced by the foot at Crutchfield Crutchfield Black Ground Wire (4-gauge) Available in 4 different sizes — priced by the foot at Crutchfield](https://images.crutchfieldonline.com/ImageHandler/trim/750/457/products/2016/32/007/g007CPWB4-f.jpg)
Crutchfield Black Ground Wire (4-gauge) Available in 4 different sizes — priced by the foot at Crutchfield
![TOPSTRONGGEAR 4 Gauge 25ft Black and 25ft Red Power/Ground Wire True 4 AWG Spec and Soft Touch Cable (Black&Red) - Newegg.com TOPSTRONGGEAR 4 Gauge 25ft Black and 25ft Red Power/Ground Wire True 4 AWG Spec and Soft Touch Cable (Black&Red) - Newegg.com](https://c1.neweggimages.com/productimage/nb640/B5ZAD2309280SEITNFF.jpg)
TOPSTRONGGEAR 4 Gauge 25ft Black and 25ft Red Power/Ground Wire True 4 AWG Spec and Soft Touch Cable (Black&Red) - Newegg.com
![50 Feet 4 Gauge Black Power Ground Wire Primary Battery Cable Car Audio Amplifier - Best Connections 50 Feet 4 Gauge Black Power Ground Wire Primary Battery Cable Car Audio Amplifier - Best Connections](https://cdn11.bigcommerce.com/s-lqmdu1tdke/images/stencil/1280x1280/products/3567/48509/d8acdea3-b359-5023-913c-ed8ee76963df__95652.1585164614.jpg?c=2)