Top 10 Gmc Sierra Rear Seat Kicker Speaker Box of 2026

The American Sound Connection Dual 12-inch Kicker Comp Sub Box is a precision-engineered enclosure designed exclusively for 2014-2018 GMC Sierra Crew Cab trucks. It houses two Kicker Comp C12 subwoofers in a vented fiberglass box tuned to a 2 Ohm final load, turning your truck's audio system into a bass beast without custom fabrication.

Ideal for daily commuters, off-road enthusiasts, and tailgaters who demand truck-shaking sound, this sub box slots perfectly under the rear seat. It elevates weak factory audio to pro-level performance, filling highways and campsites with deep lows that make every drive epic.

In real-world use, it pairs with most amps to handle hundreds of watts, delivering punchy bass that stays tight even at high volumes. Truck owners report effortless installs and immediate sound upgrades that rival custom shops.

Verdict: A top pick for GMC Sierra drivers seeking affordable, high-impact bass without sacrificing cab space or ride quality. Grab it if you want your truck to rumble like a concert rig.

Expect thunderous bass depth from the dual 12-inch Kicker Comp subs, tuned for frequencies down to 25Hz in the vented 2 Ohm enclosure. It excels at heart-pounding lows for hip-hop, rock, and country tracks, making stock speakers feel flat by comparison.

Vocal clarity takes a backseat to the subs' focus on bass, but overall system balance shines when paired with door speakers. Volume levels push SPLs over 140dB with proper amping, stable across long hauls without breakup.

Though passive, its design ensures reliable power transfer from truck amps, maintaining stability for hours of cruising or partying. Perfect for bass-heavy playlists that demand authority on the move.

Built from rugged fiberglass with carpeted finish, this sub box withstands truck vibrations, dust, and rough roads better than MDF alternatives. Its custom shape hugs the 2014-2018 GMC Sierra Crew Cab floorpan precisely, minimizing rattles.

Weighing in at a manageable size for under-seat mounting, it preserves cab usability while adding zero bulk externally. No IP rating needed as it's a sealed truck install, protected from elements inside the cab.

Power draws directly from your vehicle's electrical system, so no battery or charging worries; runtime matches your drive time with efficient 2 Ohm design that sips amp power for sustained performance on cross-country trips.

This KICKER speaker upgrade kit is a complete package for GMC Sierra 1500 Crew Cab owners from 2014-2019, featuring a pair of 6.5-inch DS Series DSC650 coaxial speakers, plus custom adapters and harnesses. It transforms lackluster factory rear door audio into a full-range experience with ultra-clean bass and high sensitivity.

Ideal for daily commuters, road trippers, or anyone hauling cargo in their Sierra who wants richer sound without complex modifications. The experts at Vixen Go matched these components perfectly, saving you hours of research.

In real-world use, installation is straightforward plug-and-play, dropping right into place. The result is punchy audio that fills the cab, making long drives more enjoyable. Overall verdict: a top-value upgrade for Sierra truck enthusiasts seeking pro-level sound on a budget.

The DS Series 2-way coaxial design delivers full-range sound across all frequencies, with ultra-clean bass that punches through road noise in your GMC Sierra. High sensitivity ensures every note is vivid, from deep lows to crisp highs, handling up to 240 watts max for cab-filling volume without distortion.

Vocal clarity shines during podcasts or calls, while music tracks gain depth for country roads or highway hauls. Paired with your truck's system, it provides stable, reliable performance that elevates the entire audio setup.

Built tough for car audio demands, these 6.5-inch coaxial speakers feature a rugged DS Series construction suited for rear door mounting in daily-driven trucks. The included Vixen Go adapters and harnesses ensure a secure, factory-like fit without rattles or vibrations.

Compact design slips easily into GMC Sierra 1500 Crew Cab doors, with no need for custom fabrication. Power draw matches stock systems efficiently, delivering consistent output during extended drives without draining accessories.

Weight is optimized for easy handling during install, making it a practical choice for DIY truck upgrades that last through seasons of use.

The QPower QBomb Easy Set is a dual 12-inch ported subwoofer enclosure built exclusively for 2007-2013 Chevy Silverado Crew Cab and GMC Sierra Crew Cab trucks. It slides perfectly under the rear seats, turning your daily driver into a rolling concert hall with enhanced low-end power.

Ideal for truck owners who crave bass that pounds through country roads, work site hauls, or weekend getaways, this enclosure pairs with your existing audio system for an immersive upgrade. No cutting or drilling required, making it a plug-and-play choice for DIY enthusiasts.

In real-world use, it transforms weak factory sound into chest-thumping bass that keeps up with loud music on long trips. The 0.90 cubic feet of airspace ensures subs breathe freely for sustained performance.

Overall verdict: A smart, no-fuss investment for Silverado and Sierra drivers seeking pro-level bass without the custom box expense. Highly recommended for authentic truck audio lovers.

The ported design excels at deep bass extension, delivering precise, impactful lows that make every kick drum and bass line feel alive during drives. With dual 12-inch compatibility, it maximizes air movement for room-shaking output in your cab.

Expect high volume levels without muddiness, as the tuned enclosure ensures clean response even at peak levels. It shines on hip-hop, rock, and EDM, providing the thump truck owners demand for tailgates or commutes.

Stable integration with factory or aftermarket amps means reliable performance on bumpy roads, with no rattles from the solid build. Bass hits with authority, elevating your entire audio setup.

Rugged black bedliner spray finish shrugs off dirt, scuffs, and spills from daily truck life, ensuring years of tough durability. At 50.5 inches wide, 16 inches high, and 5-9 inches deep, its compact profile fits snugly under seats without eating cargo space.

Weighing just 42 lbs, its lightweight construction makes maneuvering straightforward, though teaming up helps for install. The angled depth adapts to cab contours for a flush, professional look.

No battery required, as it draws directly from your truck's audio system for unlimited runtime on road trips or endless drives. Pair with a strong amp, and enjoy non-stop bass wherever the highway takes you.

The QPower Single 12-Inch Downfire or Behind-Seat Speaker Box is a shallow subwoofer enclosure designed for truck enthusiasts who want enhanced bass without bulky installations. It fits most GMC, Chevrolet, and Ford trucks, mounting behind or under the seat to deliver powerful low-end sound in compact spaces.

Ideal for daily commuters, off-road adventurers, or tailgaters, this enclosure offers 0.75 cubic feet of airspace and a 5.75-inch mounting depth, making it compatible with many 12-inch subs. The durable bedliner finish ensures it handles vibrations and rugged use, turning your truck cab into a mobile concert hall.

In real-world use, it provides tight, controlled bass that fills the cabin evenly, whether downfired or angled behind the seat. Truck owners praise its easy fit and sound customization, making it a smart upgrade for factory systems lacking punch.

Verdict: A top pick for American truck drivers seeking affordable, versatile bass enhancement that prioritizes space and durability.

This enclosure excels in delivering deep, punchy bass thanks to its 0.75 cubic feet of optimized airspace, perfect for thumping lows during highway drives or off-road jams. The downfire or behind-seat mounting options let you tune sound direction for maximum cabin impact, with tight response that avoids muddiness.

Paired with a quality 12-inch sub, expect strong volume levels that overpower road noise, with solid low-end extension for genres like hip-hop, rock, or country. Vocal clarity stays balanced as the sub focuses on bass reinforcement without overpowering mids from your head unit.

Performance shines in trucks where space limits bigger boxes, offering stable output for long hauls and reliable bass that enhances every playlist.

Built tough with a bedliner spray coat over durable materials, this enclosure resists scratches, dents, and daily truck wear, standing up to muddy trails or construction sites. Its shallow 7.5 x 19.63 x 13.25-inch dimensions slip neatly under seats, saving precious cab space.

At just 5.75 inches mounting depth, it accommodates slim subs for hassle-free installs in GMC, Chevy, or Ford trucks. No battery needed; it draws power directly from your vehicle's audio system for endless play without recharges.

Lightweight yet rugged design makes it easy to handle during setup, focusing on longevity and fit for American truck lifestyles from work sites to weekend getaways.

The KICKER KIC17-44TCWC104-RS is a 10-inch CompC subwoofer enclosure built for trucks, offering a sealed, ported box that slips neatly under or behind seats. It's perfect for American truck owners who crave heart-pounding bass during commutes, tailgates, or long hauls without bulky installs.

This renewed unit undergoes rigorous testing to perform like new, complete with a genuine CompC driver known for durability and punch. In real-world use, it transforms stock truck audio into a bass-heavy powerhouse, ideal for country roads or off-road adventures.

Targeted at DIY audio upgraders, it delivers value through its custom port design that maximizes output in tight spaces. While it shines in trucks, setup needs an amp match. Overall verdict: a smart, space-saving bass upgrade for pickup drivers seeking pro-level sound on a budget.

Powered by a genuine CompC 10-inch subwoofer, this enclosure pumps out deep, rumbling bass that fills truck cabs with authority. The custom port design tunes for tight, accurate lows, making bass lines hit hard on highways or at campsites.

At 4-Ohm impedance, it pairs efficiently with factory or aftermarket amps for high volume without distortion. Expect truck-shaking performance on hip-hop tracks or rock anthems, with solid mid-bass punch for everyday listening.

Stable wiring ensures consistent output during bumpy rides, outperforming loose universal subs in confined spaces.

Slim and rugged, this enclosure measures for perfect under-seat or behind-seat placement in most full-size trucks, preserving passenger room. Its sturdy build withstands vibrations from daily drives and off-road trails.

No battery needed as it's a passive car audio component, drawing power directly from your truck's system for endless playtime on road trips. Weighing in compact, it's easy to install solo with basic tools.

Certified refurbished finish looks sharp, with all accessories included for hassle-free setup in American pickups.

This KICKER speaker upgrade kit includes a pair of 46CSC654 6.5-inch CS Series coaxial speakers, plus Vixen Go adapters and harnesses, designed exclusively for the rear doors of GMC Sierra 2500 HD and 3500 HD Crew Cabs from 2015 to 2021. It replaces lackluster factory speakers with pro-grade audio that delivers full-range sound and ultra-clean bass, making it perfect for truck owners tired of muffled road noise drowning out their tunes.

Targeted at American truck enthusiasts who haul, tow, or just cruise highways, this bundle saves hours of compatibility research. The high-sensitivity drivers ensure powerful output even from stock head units, ideal for country roads, work sites, or family road trips where clear vocals and punchy lows keep everyone engaged.

In real-world use, installation takes under an hour with no cutting or splicing thanks to the plug-and-play components. Performance shines on long drives, with balanced frequencies cutting through engine rumble for an immersive cab experience. Overall verdict: A top-value upgrade that punches above its weight for Sierra owners seeking effortless audio bliss.

The CS Series 2-way coaxial design hits all frequencies with precision, offering ultra-clean bass that adds depth to country tracks or rock anthems without muddiness. High sensitivity means high volume levels from your factory radio, filling the Crew Cab with room-shaking sound even at highway speeds.

Vocal clarity stands out, ensuring podcasts and calls come through crisp amid road noise. With 300 watts max handling, it scales well for amplified setups, delivering distortion-free performance on bass-heavy playlists perfect for tailgating or daily commutes.

Stable wired connection via included harnesses provides reliable power transfer, outperforming stock speakers in every metric for truck audio upgrades.

Built tough for truck life, these 6.5-inch speakers feature a rugged coaxial design that withstands vibrations from towing and off-road bumps. The included Vixen Go adapters ensure a flush, factory-like fit in GMC Sierra rear doors, maintaining cab integrity.

Lightweight construction keeps doors balanced, with no added stress on hinges. Vehicle-powered via harnesses means no battery concerns; it draws directly from your truck's system for endless playtime on cross-country hauls.

Compact profile and included mounting hardware make it a smart, durable choice for heavy-duty Sierras, prioritizing longevity over portability.

This KICKER upgrade kit includes a pair of 6.5-inch CS Series coaxial speakers, custom adapters, and harnesses designed specifically for the rear doors of 2014-2019 GMC Sierra 1500 Crew Cabs. It replaces weak factory speakers with pro-grade audio that delivers full-range sound and ultra-clean bass, making it a top choice for truck owners tired of muffled music on highways or backroads.

Car audio experts matched these components for hassle-free integration, saving you hours of compatibility research. Whether you're hauling gear, tailgating at games, or cruising country roads, the high sensitivity ensures every note punches through cabin noise for an engaging listen.

Installation is straightforward plug-and-play, taking under an hour for most DIYers. Real-world drives show crisp highs, balanced mids, and tight bass that elevates daily commutes. Verdict: A smart, affordable upgrade that punches above its weight for Sierra drivers seeking factory-plus sound without complexity.

The CS Series 2-way coaxial design covers full-range frequencies with high sensitivity, producing powerful output up to 300W max. Bass is ultra-clean and tight, ideal for country tunes or rock playlists during long drives, without the muddiness of stock speakers.

Vocal clarity shines through with precise mids, making podcasts and calls audible even at highway speeds. Volume levels fill the cab effortlessly from the factory head unit, with low distortion for sustained high-volume play.

Paired with the truck's system, it offers stable performance tailored to Sierra acoustics, outperforming generics for immersive, road-ready audio.

Built tough for daily truck use, these 6.5-inch speakers feature a rugged coaxial design that withstands road vibrations and temperature swings in the Sierra's rear doors. Adapters ensure a flush, factory-like fit without rattles.

Lightweight construction keeps the vehicle's handling unchanged, while the included harnesses provide clean wiring integration. No battery needed; powered directly by the truck's audio system for unlimited runtime on every drive.

Overall, the bundle's smart engineering prioritizes durability and simplicity, making it reliable for work sites, off-road adventures, or family road trips.

The KICKER CWCS10 is a dual 10-inch CompC subwoofer enclosure custom-designed for 2002-2013 GMC Sierra HD Crew trucks. It slots perfectly into the factory location, delivering truck-rattling bass that upgrades your ride's audio without custom fabrication.

Targeted at truck enthusiasts who blast music on long hauls, off-road adventures, or work commutes, this sub box excels in providing the low-end punch missing from stock systems. Paired with a capable amp, it handles genres from country to rap with authority.

In real-world use, expect chest-thumping bass that stays tight even at high volumes, making every drive more immersive. The sealed design ensures reliability on bumpy roads.

Verdict: A must-have for Sierra owners ready to level up their sound system. If you want effortless power and fit, this is your upgrade.

Bass depth is the star here, with dual CompC 10-inch woofers plunging to heart-pounding lows that fill the cab. The sealed enclosure keeps response tight and musical, avoiding the boominess of ported boxes.

Vocal clarity shines through when paired with front speakers, as the subs focus purely on lows without muddying mids. Volume levels shake mirrors and turn heads at stoplights, stable across 500W RMS handling.

Though passive, connectivity is straightforward via amp wiring, with no Bluetooth dropouts to worry about. Expect consistent performance on long drives.

Rugged MDF construction with carpeted finish withstands road vibrations and dust in truck environments. No IP rating needed, as the sealed box protects against cab debris and temperature swings.

At around 50 pounds, it's hefty for secure mounting but requires two people for install. Dimensions hug the Sierra's rear wall perfectly, maximizing space efficiency.

No battery involved; it draws directly from your truck's electrical system for unlimited playback. Pair with a 1000W amp for peak output without drain concerns.

This KICKER upgrade kit includes a pair of 6x9-inch DS Series 3-way speakers, custom harnesses, and adapters tailored for GMC Sierra and Denali 1500 trucks from 2014 to 2023 in all cab configurations. Designed by car audio experts, it replaces lackluster factory speakers with a complete plug-and-play solution, eliminating guesswork for DIY installs.

Truck owners tired of muddled sound on open-road adventures will appreciate the full-range audio that punches through road noise. The high-sensitivity drivers ensure every note from country anthems to rock playlists comes alive, making daily commutes or weekend getaways more enjoyable.

In real-world use, the speakers excel at delivering clean bass and detailed highs without needing extra modifications. The bundle's value shines in its simplicity, turning a complex upgrade into a weekend project. Overall verdict: a top pick for GMC loyalists wanting pro-level sound without pro-level hassle.

The DS Series 3-way design covers low, mid, and high frequencies for a balanced sound signature with standout ultra-clean bass that thumps through truck cabins. High sensitivity means impressive volume levels even from factory head units, ideal for blasting tunes over engine rumble.

Vocal clarity shines on lead singers and podcasts, while the 360W max power handling supports distortion-free playback at highway speeds. No Bluetooth here, but wired stability ensures reliable performance directly from your stereo, outperforming stock speakers in every metric.

Built tough for daily truck duty, these 6x9 speakers feature a robust DS Series construction that withstands vibrations and temperature swings on rugged terrains. The included Metra adapters ensure a seamless front-door fit for GMC Sierra/Denali 1500 models, with Vixen harnesses for clean wiring.

No battery needed as they draw power straight from your vehicle's system, offering unlimited runtime on every drive. Compact enough for OEM locations yet powerful in delivery, the design prioritizes longevity and easy integration over portability.

Weight is optimized for door mounting without sagging panels, making this kit a durable, low-maintenance choice for American truck enthusiasts.

This KICKER upgrade kit features a pair of 6.5-inch CS Series component speakers, along with custom Vixen Go adapters and harnesses, designed specifically for the rear doors of 2015-2021 GMC Sierra 2500 HD and 3500 HD Crew Cabs. It transforms lackluster factory audio into a full-range experience with ultra-clean bass and high sensitivity, perfect for truck owners tired of muddled sound during highway cruises or job site commutes.

Car audio experts curated this bundle to eliminate guesswork, ensuring a seamless fit that saves time and hassle. Whether you're hauling loads or heading out for weekend adventures, these speakers deliver punchy performance right where you need it most in the cab.

In real-world use, the high sensitivity shines by producing ample volume from stock head units, filling the cab with balanced sound. The plug-and-play design means most installs take under an hour, no dash disassembly required.

Verdict: A top pick for GMC Sierra heavy-duty owners wanting pro audio upgrades without complexity. It delivers serious value for clearer, more dynamic listening on every drive.

The CS Series speakers excel with full-range reproduction, hitting every frequency from deep bass to crisp highs thanks to high sensitivity design. Ultra-clean bass provides thumping lows that enhance country tunes or podcasts without muddiness, ideal for rumbling truck engines.

With 300 watts max power handling, they push high volume levels across the cab, maintaining clarity even at highway speeds. The component setup separates mids and highs for precise vocal clarity, making conversations and calls stand out effortlessly.

Paired with factory systems, expect stable, distortion-free output that outperforms stock speakers, turning your Sierra into a mobile concert hall for road warriors.

Built tough for truck life, these 6.5-inch components feature a durable design that withstands daily vibrations and off-road jolts in GMC Sierras. The included Vixen Go adapters ensure a flush, factory-like fit in rear doors, maintaining cab integrity.

Lightweight construction keeps weight down for better fuel efficiency, while the harnesses enable clean wiring without modifications. No batteries needed; they draw power directly from your truck's system for endless playback on long hauls.

Rugged enough for work trucks yet refined for comfort, this kit prioritizes seamless integration and longevity over flashy looks.