See all parts that fit your 2021 Terrain
Product highlights
1 gold-plated ring terminal (POWER, RED Color) • Works with 4 gauge wire
Learn more about the rt4r-1pc
6x9" Speaker Mounting Adapter for select 2012-2025 vehicles from GMC, Chevrolet, Cadillac
$29.99
List price $33.99
Install New Speakers in select 2006-2024 vehicles from Chevrolet, GMC, Cadillac
$13.99
List price $14.99
900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers
$111.96
List price $159.99
Universal 6x9" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)
$22.99
List price $39.99
Infinity PR693M (INFSPKPR693M)
360W Peak (120W RMS) 6x9” Primus Series 3 Way Coaxial 3-ohm Speakers
$149.96
List price $179.95
100W RMS 6.5" E Series Component 4-ohm Speakers (E6.5CS)
$199.99
List price $239.99
600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers
$79.96
List price $119.99
900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers
$111.96
List price $159.99
150W Peak (50W RMS) 3.5" Club Series 2 Way Coaxial 3-ohm Speakers
$79.95
List price $109.95
480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)
$84.99
List price $94.99
600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers
$109.00
List price $119.99
360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers
$99.95
List price $139.95
600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System
$999.99
List price $1175.00
250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers
$319.00
List price $339.00
280W Peak (90W RMS) 6x9” SXE Series 2-way 4-ohm Coaxial Speakers
$56.99
List price $71.99
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• 2/0-gauge copper ring terminals
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Manufacturer:
Model Number:
RT4R-1PC
Weight:
0.10lbs
Internal SKU:
rt4r-1pc
Internal Product ID:
5289
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RCA Audio Y-Adapter Interconnect Cable, One Female Plug to Two Male Jacks
$4.99
List price $9.99
GPS Care and Cleaning Kit with Case, Screen Protectors and Cleaning Cloth
$39.95
List price $39.95
2-Pack of Y-Adapters: 1 Female Plug to 2 Male Ends, 300 XLN Series Interconnects
(4)
$17.99
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Wired Remote Punch EQ Control for One, Two, or Three Amplifiers for select 2007 and Newer Rockford Fosgate Amplifiers
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50 ft Spool of 1/0 Gauge AWG Gunmetal Gray Power / Ground Cable Wire
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$229.99
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.
