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Alpine Powered Stereo System Upgrade; 300W (15-20 All)

Item 406708
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Market Price $799.99 You Save 13% ($100.00)
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$699.99 (kit)

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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Powered Stereo System Upgrade
      • Low Sound Distortion at High Volume
      • Integrated System With Amplifier and Subwoofer
      • Amplifier Rated at 45 Watts with 4 Channels
      • Subwoofer Rated at 120 Watts
      • Powered Subwoofer Measures 8-Inches in Diameter
      • Compatible With Factory or Aftermarket Radio
      • Includes Mounting Bracket and Wiring Harness With Wired Subwoofer Remote
      • Straightforward Installation With Minor Drilling
      • One-Year Limited Warranty
      • Fits All 2015-2020 Ford Mustang Models


      Premium Sound Quality Upgrade. If your Mustang’s sound system is just not doing it for you, then it’s time to switch over to the Alpine 300W Powered Stereo System Upgrade. This stereo system upgrade includes a subwoofer and an amplifier that together produces 300 Watts of crystal-clear sound, a lot of which are those low bass sounds. This upgraded power works to give your favorite music more life, making even the most mundane driving chore much more enjoyable.

      More Power, Less Distortion. The Alpine 300W Powered Stereo System Upgrade produces 300-Watts of power which is divided between the amplifier and the powered subwoofer. The subwoofer features a Class-D amplifier with a 120-Watt rating that pumps out chest thumping bass with a level range of 0 to -20 Decibels, depending on the main amplifier’s gain setting. Likewise, the power amplifier produces 45 Watts running through 4 channels. This amplifier produces a sound that’s actually less distorted at higher volumes. This translates to louder, more vibrant music with tons of detail.

      Fully-Integrated System. The Alpine 300W Powered Stereo System Upgrade is designed as a fully-integrated sound system upgrade. This sound system has the subwoofer and the amplifier pre-assembled into one compact unit. The included harnesses feature connectors that are completely compatible with your Mustang’s stock connectors, making installation essentially a plug-and-play procedure. An included wired remote control allows you to adjust the bass level from the driver’s seat. Additionally, this powered stereo system will work with your factory radio, as well as most aftermarket radios. Please note that this system will not work with the 9-speaker factory sound system upgrade.

      Straightforward Installation With Minor Drilling. The Alpine 300W Powered Stereo System Upgrade is designed as a direct install assembly. This stereo system maximizes unused space by mounting behind your Mustang’s glove box. Minor drilling is needed to enlarge 2 openings below the glove box. Other than this step, installation is pretty straightforward. Additionally, all wiring and hardware are included for convenience.

      Backed by a 1-Year Limited Warranty. The Alpine 300W Powered Stereo System Upgrade is backed by a 1-year limited warranty covering manufacturing defects. Please visit the manufacturer’s website for additional details.

      Application. The Alpine 300W Powered Stereo System Upgrade fits all 2015-2020 Ford Mustang models.

      Fitment: 2015 2016 2017 2018 2019 2020

      MPN# PSU-300MTG

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (2)

      Write a Review

      Ratings Summary

      4.0 out of 5 overall rating from 2 customers

      • December 30, 2019

        3 2017 EcoBoost - RandyB


        Seems like the per size and put in a great location under the glove box.

        Helpful (0)
      • November 06, 2019

        5 2017 EcoBoost - 17ecoboost

        Just perfect

        Exactly what I was looking for great addition to factory setup and not an eye sore in anyway. Excellent quality and performance is unrivaled.

        Helpful (4)

      Questions & Answers (4 answers)

      4 Top Rated Questions

      You should post photos of what it looks like installed. Alpine Needs to supply them. Hopefully they took pictures of one installed. Video Install guide would be nice too.

      I have a 2019 gt 410A package 9 speaker unit with amp will this work with that unit?

      How and where do you plug this up at?

      Will this fit in the 2018 Shelby GT350R with the Electronics package? Does this system simply plug into existing system?

      • The Alpine Powered Stereo System Upgrade can be used with the 15-20 Mustangs including the GT350R's equipped with the Electronic Package.

      Helpful (0)
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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Powered Subwoofer
      • (1) Amplifier
      • (1) Main Harness, 7 Feet in Length
      • (1) T-Harness, 11 Inches in Length
      • (1) Loomed Power Cable, 12 Feet In Length
      • (4) RCA-Style Speaker Harnesses, 10 Inches in Length
      • (1) Remote Bass Control Knob With 16-Foot Cord
      • (1) Mounting Plate
      • (2) Mounting Clips
      • (1) Hook-and-Loop Fastener
      • (10) Wire Ties
      • Mounting Hardware