Harley Low Rider ST Audio Speaker System Upgrade
The Plex ST Motorcycle Audio Speaker System is designed specifically as a Harley Low Rider ST audio upgrade, delivering powerful sound from your fairing-mounted speaker system. Engineered for a clean and simple installation, the Plex ST mounts directly to the OEM Low Rider ST fairing or the Advanblack Low Rider ST style fairing, making it one of the easiest ways to upgrade your motorcycle audio.
 
Built with Rockford Fosgate performance components, the Plex ST delivers loud, high-quality sound designed to cut through wind and road noise while riding. Whether cruising through town or hitting the highway, Plex Audio systems provide the performance riders expect from a premium motorcycle audio upgrade.
 
Plex ST vs Plex ST PRO
Both versions of the Plex ST share the same design and installation platform, but the Plex ST PRO features upgraded speakers for riders who want maximum volume and clarity.
 
The Plex ST PRO includes the new 300W Rockford Fosgate 6.5” speakers, delivering nearly double the output of the previous generation. This makes the PRO version the loudest and cleanest sounding Plex Audio system to date.
 
Easy Installation – Plug & Play Design
Each Plex ST system comes pre-wired and ready to install, making the setup process fast and straightforward.
 
Installation is simple:
1. Attach the Plex ST bracket to the system
2. Mount the system onto your Low Rider ST fairing
3. Connect the included power harness directly to your motorcycle battery
 
Once installed, you’ll be ready to stream music through the system in minutes.
 
Power On/Off Options
The Plex ST gives riders two convenient power control options depending on their installation preference.
 
Option 1 – Power Button (Recommended)
A power button mounted directly on the Plex Audio unit allows you to manually turn the system on and off. This option provides the fastest and easiest installation.
 
Option 2 – Headlight Jumper Harness
This option connects the remote wire to your headlight harness so the system automatically turns on and off with your motorcycle ignition. The included connector matches the OEM Harley-Davidson Low Rider ST headlight harness.
 
What’s Included
Each Plex ST system includes the following components:
Plex ST Shell
Plex ST Mounting Bracket
Power Wire Harness
Rockford Fosgate T400x2AD Amplifier
Rockford Fosgate TMS65 Speakers
PRO Version: Rockford Fosgate TMS24-65 Speakers
Plex Audio Bluetooth Receiver
This complete system gives you everything needed to upgrade your Low Rider ST motorcycle audio setup.
 
Warranty Information
All Plex ST systems include a one-year warranty covering parts and components.
If an issue occurs within the first 30 days, Plex Audio will cover shipping both ways and repair or replace the unit.
 
After the first 30 days but within the one-year warranty period, customers are responsible for shipping the unit to Plex Audio, and the system will be repaired or replaced at no additional cost.
 
Proof of purchase is required. Please keep your receipt or order number.
The warranty is valid only for systems purchased directly from Plex Audio or through an authorized Plex Audio dealer. Warranty coverage does not transfer to third-party or private sale owners.
 
Authorized dealers cannot process warranty claims. Please contact Plex Audio directly for warranty service.
 
Returns
Plex Audio systems must be returned in new, unused, and unmounted condition to qualify for a refund.
 
Approved returns will receive a refund minus shipping costs. Units that are returned used or damaged may be subject to a 25% restocking fee.
 
If the system was purchased through an authorized dealer, please contact Plex Audio before returning the unit.