Garage
Shop

Discontinued MTX Car Stereo Packages & Bundles for your 2021 Terrain close

Get all your car audio needs with MTX’s car audio packages.

Exclamation Icon It’s a no-brainer.
Get your stereo here.

Install gear discounts · Guaranteed fit · Full warranty
Loading...

Your Vehicle


Universal fit Icon
Explore universal-fit stereo products for your 2021 Terrain
Vehicle-specific solutions are not available.

Update vehicle | Remove vehicle | Vehicle store

Shop the Category

filter-icon Filters & Sort
You are currently viewing discontinued products.

MTX Audio Magnum Subwoofer Bass Package - Open Box, Acceptable but Missing part

1200W Dual 10" Loaded & Ported Subwoofer Enclosure with Monoblock Subwoofer Amplifier Included

Go to item page Right Arrow Icon of Right Arrow

1200W Dual 10" Loaded & Ported Subwoofer Enclosure with Monoblock Subwoofer Amplifier Included

• 800W Peak
• Polymer coated pulp cone
• Foam surround
• 4 Ohm
• Magna Bass Mono Amplifier
• 5/8" MDF construction

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• 800W Peak
• Polymer coated pulp cone
• Foam surround
• 4 Ohm
• Magna Bass Mono Amplifier
• 5/8" MDF construction

EXCLUSIVE

15" MTX T9515-44 1000W Subwoofer + HFi1500D 1500W RMS + 4 Gauge Amp Kit

2000W Peak 15" Superwoofer Bass Package ( Includes - Sub, Amp and Wiring Kit )

Go to item page Right Arrow Icon of Right Arrow

2000W Peak 15" Superwoofer Bass Package ( Includes - Sub, Amp and Wiring Kit )

15" Dual 4 Ohm Thunder9500 Subwoofer
• 2000W Max
• 1000W RMS
• High roll NBR Surround
• Asymmetrical Linear Drive System
• Stitched cone for added durability
• Spider plateau venting cooling system
• 4" Voice coil

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

15" Dual 4 Ohm Thunder9500 Subwoofer
• 2000W Max
• 1000W RMS
• High roll NBR Surround
• Asymmetrical Linear Drive System
• Stitched cone for added durability
• Spider plateau venting cooling system
• 4" Voice coil

MTX 3510-04 12" 500 Watt SVC 4-ohm Car Audio Subwoofer+ Free Sealed Enclsoure

500W Peak (250W RMS) 12" 35 Series Single 4 Ohm Subwoofer Package

Go to item page Right Arrow Icon of Right Arrow

500W Peak (250W RMS) 12" 35 Series Single 4 Ohm Subwoofer Package

• 500W Peak
• 250W RMS
• Polypropylene Woofer Cone
• Nitrile Butyl Rubber Surround
• Inverted Apex Surround Design
• Spring Loaded Push Pin Terminals

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• 500W Peak
• 250W RMS
• Polypropylene Woofer Cone
• Nitrile Butyl Rubber Surround
• Inverted Apex Surround Design
• Spring Loaded Push Pin Terminals

(2) MTX 9515-22 15" 3000 Watt RMS Competition Subwoofers DVC Car Audio Subs

1500W RMS 15" 95 Series Dual 2-Ohm Car Subwoofer Package

Go to item page Right Arrow Icon of Right Arrow

1500W RMS 15" 95 Series Dual 2-Ohm Car Subwoofer Package

• 1500 Watts RMS
• 3000 Watts Max
• High Efficiency Glass Fiber Cone
• Inverted Apex Surround
• Cast Aluminum Basket
• Three layer thermal management design
• Internal Voice Coil Heatsink

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• 1500 Watts RMS
• 3000 Watts Max
• High Efficiency Glass Fiber Cone
• Inverted Apex Surround
• Cast Aluminum Basket
• Three layer thermal management design
• Internal Voice Coil Heatsink

MTX Audio Terminator Dual Subwoofer Package + Amplifier (TNP212D2) (OPEN BOX)

1200 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier and Bass Knob Included

Go to item page Right Arrow Icon of Right Arrow

1200 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier and Bass Knob Included

• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

Promo Savings Icon

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

MTX 5512-44 12" 800 Watt Peak/400 Watt RMS DVC 4-ohm Car Sub+Bluetooth Speaker

800W Peak (400W RMS) 12" 55 Series Dual 4 Ohm Subwoofer Package

Go to item page Right Arrow Icon of Right Arrow

800W Peak (400W RMS) 12" 55 Series Dual 4 Ohm Subwoofer Package

• 800W Peak
• 400W RMS
• Polypropylene Cone
• Rubber Surround
• Spider Plateau Venting Mechanically Cools the Voice Coil
• Radial Ribbed T-Yoke Dissipates Heat and Decreases Distortion

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• 800W Peak
• 400W RMS
• Polypropylene Cone
• Rubber Surround
• Spider Plateau Venting Mechanically Cools the Voice Coil
• Radial Ribbed T-Yoke Dissipates Heat and Decreases Distortion

Go to item page Right Arrow Icon of Right Arrow

• Item Condition: Open Box
• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• Item Condition: Open Box
• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

MTX Audio TNP212D2 Terminator Dual Subwoofer Package + Amp Open Box (Complete)

1200 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier and Bass Knob Included

Go to item page Right Arrow Icon of Right Arrow

1200 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier and Bass Knob Included

• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

MTX Audio Terminator TNP212D (Open Box)

Amplified and Loaded Dual 12" Enclosed Subwoofer System

Go to item page Right Arrow Icon of Right Arrow

Amplified and Loaded Dual 12" Enclosed Subwoofer System

• Amplified and Loaded Dual 12" Enclosed Subwoofer System
• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Built-in Adaptive Cooling Fans
• Smart Engage Auto Turn-On Circuitry

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• Amplified and Loaded Dual 12" Enclosed Subwoofer System
• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Built-in Adaptive Cooling Fans
• Smart Engage Auto Turn-On Circuitry

MTX Audio Magnum Subwoofer Bass Package MB210SP Open Box (Complete)

1200W Dual 10" Loaded & Ported Subwoofer Enclosure with Monoblock Subwoofer Amplifier Included

Go to item page Right Arrow Icon of Right Arrow

1200W Dual 10" Loaded & Ported Subwoofer Enclosure with Monoblock Subwoofer Amplifier Included

• 800W Peak
• Polymer coated pulp cone
• Foam surround
• 4 Ohm
• Magna Bass Mono Amplifier
• 5/8" MDF construction

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• 800W Peak
• Polymer coated pulp cone
• Foam surround
• 4 Ohm
• Magna Bass Mono Amplifier
• 5/8" MDF construction

MTX Audio TNP212D2 Terminator Dual Subwoofer Package + Amplifier (Open Box)

1200 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier and Bass Knob Included

Go to item page Right Arrow Icon of Right Arrow

1200 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier and Bass Knob Included

• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

MTX 7512-44 12" 1500w Subwoofer DVC 4-ohm+ Free Enclosure and Sound Dampening

750W 12" SuperWoofer 75 Series Dual 4-Ohm Competition Level Performance Package

Go to item page Right Arrow Icon of Right Arrow

750W 12" SuperWoofer 75 Series Dual 4-Ohm Competition Level Performance Package

• Peak Power: 1500W
• RMS Power: 750W
• Polypropylene Cone Woofer
• Compression Molded NBR Surround

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• Peak Power: 1500W
• RMS Power: 750W
• Polypropylene Cone Woofer
• Compression Molded NBR Surround

MTX TNP212D2 OPEN BOX COMPLETE

Dual 12" Amplified Terminator Loaded Subwoofer Bass System

Go to item page Right Arrow Icon of Right Arrow

Dual 12" Amplified Terminator Loaded Subwoofer Bass System

  • Item Condition: Open Box Complete
  • • 1200W Peak (2 Subs)
    • 400W RMS (2 Subs)
    • 48oz. Magnet
    • Terminator Series Class D Monoblock Car Amplifier
    • Heavy 5/8" MDF Construction
    • Black Carpeting

    Universal Icon Universal – fits most vehicles.

    Shop similar products or Update vehicle

  • Item Condition: Open Box Complete
  • • 1200W Peak (2 Subs)
    • 400W RMS (2 Subs)
    • 48oz. Magnet
    • Terminator Series Class D Monoblock Car Amplifier
    • Heavy 5/8" MDF Construction
    • Black Carpeting

    MTX TNP212D2 OPEN BOX COMPLETE

    Dual 12" Amplified Terminator Loaded Subwoofer Bass System

    Go to item page Right Arrow Icon of Right Arrow

    Dual 12" Amplified Terminator Loaded Subwoofer Bass System

    Outer box damage
    • 1200W Peak (2 Subs)
    • 400W RMS (2 Subs)
    • 48oz. Magnet
    • Terminator Series Class D Monoblock Car Amplifier
    • Heavy 5/8" MDF Construction
    • Black Carpeting

    Universal Icon Universal – fits most vehicles.

    Shop similar products or Update vehicle

    Outer box damage
    • 1200W Peak (2 Subs)
    • 400W RMS (2 Subs)
    • 48oz. Magnet
    • Terminator Series Class D Monoblock Car Amplifier
    • Heavy 5/8" MDF Construction
    • Black Carpeting

    MTX Terminator TNP212D2 1200w 2 Ohm Dual 12” Subwoofers/Sub Box/Amp+Headphones

    1200 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier and Bass Knob Included Package

    Go to item page Right Arrow Icon of Right Arrow

    1200 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier and Bass Knob Included Package

    • 1200W Peak (2 Subs)
    • 400W RMS (2 Subs)
    • 48oz. Magnet
    • Terminator Series Class D Monoblock Car Amplifier
    • Heavy 5/8" MDF Construction
    • Black Carpeting

    Universal Icon Universal – fits most vehicles.

    Shop similar products or Update vehicle

    • 1200W Peak (2 Subs)
    • 400W RMS (2 Subs)
    • 48oz. Magnet
    • Terminator Series Class D Monoblock Car Amplifier
    • Heavy 5/8" MDF Construction
    • Black Carpeting

    MTX Terminator TNE212DV 1000w RMS Dual 12” Subs+Vented Subwoofer Box+Amp+Wires

    1000W Terminator Series Ported Dual 12" Subwoofer Enclosure Package

    Go to item page Right Arrow Icon of Right Arrow

    1000W Terminator Series Ported Dual 12" Subwoofer Enclosure Package

    • 1000W Dual 12" Vented Subwoofer Enclosure
    • 12" Subwoofer
    • 5/8" MDF Enclosure with Black Carpet Finish
    • Enclosure Dimensions: 11" TD x 13.5" BD x 29.5" W x 14" H

    Universal Icon Universal – fits most vehicles.

    Shop similar products or Update vehicle

    • 1000W Dual 12" Vented Subwoofer Enclosure
    • 12" Subwoofer
    • 5/8" MDF Enclosure with Black Carpet Finish
    • Enclosure Dimensions: 11" TD x 13.5" BD x 29.5" W x 14" H

      Clear all

      MTX Car Stereo Packages & Bundles Information

      MTX has all of your car audio needs with its extensive packages. These packages come with all the tools and components you need for any audio needs. Get your car audio needs from MTX.
      why-shoping-with-sonic

      We love people and we're ready to help you! See what separates us from our competition.

      Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
      Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
      We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
      Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
      We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
      Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
      Why Shop With Us?
      Save up to 10 different vehicles in your garage
      Vehicle
      Store
      Delete

      2021 GMC Terrain

      2003 Ford Focus

      2011 Land Rover LR2

      2016 Audi S7

      1983 Buick LeSabre

      2018 Kia Optima

      2021 Subaru Forester

      2013 Audi A4

      2014 Nissan Juke

      2007 Mazda CX-7

      Add vehicle Clear all vehicles
      Where to find vehicle info
      Are you sure you want to clear your garage?
      This action cannot be undone. Confirm
      This category was not designed for products.
      If you continue, you will be redirected to a category customized for your vehicle. Continue
      Loading...
      Identify your vehicle and submodel details
      • Owner's manual
      • Vehicle's insurance card
      • Vehicle registration
      • Vehicle produced after 2005: Inside driver's side door
      • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
      Car Info Side Door Icon
      Vehicle Registration Icon
      Vehicle Insurance Icon

      Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

      • You see only parts engineered for your exact vehicle
      • You avoid incompatible radios, speakers, or wiring
      • Installation is smoother, faster, and frustration-free
      • You get the correct accessories the first time

      Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.