---
product_id: 481763701
title: "DS18 RY-Harness.HD Harley Davidson Plug and Play Harness for Amplifiers, 4 Channel RCA Pre-Output Ready to Use - Great for Upgrade Your Motorcycle Sound System"
brand: "ds18"
price: "A$361"
currency: AUD
in_stock: true
reviews_count: 8
category: "Ds18"
url: https://www.desertcart.com.au/products/481763701-ds18-ry-harness-hd-harley-davidson-plug-and-play-harness
store_origin: AU
region: Australia
---

# High to Low Signal Converter 4-Channel RCA Pre-Output Plug & Play Installation DS18 RY-Harness.HD Harley Davidson Plug and Play Harness for Amplifiers, 4 Channel RCA Pre-Output Ready to Use - Great for Upgrade Your Motorcycle Sound System

**Brand:** ds18
**Price:** A$361
**Availability:** ✅ In Stock

## Summary

> 🎵 Ride Loud, Ride Proud: Upgrade Your Harley’s Sound Game Instantly!

## Quick Answers

- **What is this?** DS18 RY-Harness.HD Harley Davidson Plug and Play Harness for Amplifiers, 4 Channel RCA Pre-Output Ready to Use - Great for Upgrade Your Motorcycle Sound System by ds18
- **How much does it cost?** A$361 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/481763701-ds18-ry-harness-hd-harley-davidson-plug-and-play-harness)

## Best For

- ds18 enthusiasts

## Why This Product

- Trusted ds18 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **4-Channel Ready:** Pre-wired 4-channel RCA outputs ready to power your amplifier or DSP without extra hassle.
- • **Install Like a Pro:** Plug and play design makes upgrading your motorcycle sound system 100x easier—no programming needed.
- • **Noise-Free RCA Output:** High-quality RCA connectors block interference, delivering pure audio clarity on every ride.
- • **Seamless Harley Integration:** Effortlessly connects your 2014+ Harley Davidson Touring bike’s factory radio to your DS18 amplifier.
- • **Crystal-Clear Audio Conversion:** High to Low signal converter with premium load resistors eliminates distortion for pristine sound quality.

## Overview

The DS18 RY-Harness.HD is a plug-and-play T-harness designed for Harley Davidson Touring models (2014 and newer) that seamlessly integrates factory radios with aftermarket DS18 amplifiers. Featuring a high to low signal converter with load resistors and 4-channel RCA pre-outputs, it ensures distortion-free, noise-free audio. This lightweight, easy-install harness transforms your motorcycle’s sound system upgrade into a quick, professional-grade experience.

## Description

Harley Davidson Touring Bike (2014 – present models) owners looking to upgrade their motorcycles sound system are sure to benefit from the handy application of the RY-HARNESS.HD. This T-Harness Kit includes everything needed to seamlessly integrate your Harley Davidson’s factory radio with your aftermarket DS18 amplifier. The High to Low Signal Converter with high-end load resistor this harness comes equipped with eliminates distortion for pure and pristine audio anywhere at any time. It even comes with high-quality RCA to block out all the noise distracting you from the perfection of professional audio. Make your installation one hundred times easier with the RY-HARNESS.HD!

Review: Easy to do - Easy to do plug and play
Review: Great product - Made it easy to run an amp for my speakers with my stock radio without having to have it programmed.

## Features

- Harley Davidson Touring Bike (2014 – present models) owners looking to upgrade their motorcycles sound system are sure to benefit from the handy application of the RY-HARNESS.HD
- This T-Harness Kit includes everything needed to seamlessly integrate your Harley Davidson’s factory radio with your aftermarket DS18 amplifier
- Ready to use speaker input connection. High to Low signal converter with load resistors
- 4 Channel RCA Pre-Output Ready to use directly to amplifier OR DSP. DSP Power connection with remote output (When The Radio Is ON)
- Plug and Play Design for simple installation. Make your installation one hundred times easier with the RY-HARNESS.HD!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BGQP71N8 |
| Best Sellers Rank | #519 in Car Audio & Video Wiring Harnesses |
| Brand | DS18 |
| Connector Type | RCA |
| Date First Available | September 28, 2022 |
| Item Weight | 1.08 pounds |
| Item model number | RY-HARNESS.HD |
| Manufacturer | DS18 |
| Material | Acrylonitrile Butadiene Styrene |
| Package Dimensions | 11.93 x 4.65 x 2.52 inches |
| UPC | 810097261006 |

## Product Details

- **Brand:** DS18
- **Connector Type:** RCA
- **Item Weight:** 0.49 Kilograms
- **Manufacturer:** DS18
- **Material:** Acrylonitrile Butadiene Styrene

## Images

![DS18 RY-Harness.HD Harley Davidson Plug and Play Harness for Amplifiers, 4 Channel RCA Pre-Output Ready to Use - Great for Upgrade Your Motorcycle Sound System - Image 1](https://m.media-amazon.com/images/I/71cBwsq4dJL.jpg)
![DS18 RY-Harness.HD Harley Davidson Plug and Play Harness for Amplifiers, 4 Channel RCA Pre-Output Ready to Use - Great for Upgrade Your Motorcycle Sound System - Image 2](https://m.media-amazon.com/images/I/81hCEGAoKrL.jpg)
![DS18 RY-Harness.HD Harley Davidson Plug and Play Harness for Amplifiers, 4 Channel RCA Pre-Output Ready to Use - Great for Upgrade Your Motorcycle Sound System - Image 3](https://m.media-amazon.com/images/I/81wXi20db5L.jpg)
![DS18 RY-Harness.HD Harley Davidson Plug and Play Harness for Amplifiers, 4 Channel RCA Pre-Output Ready to Use - Great for Upgrade Your Motorcycle Sound System - Image 4](https://m.media-amazon.com/images/I/81Hxd0e+35L.jpg)
![DS18 RY-Harness.HD Harley Davidson Plug and Play Harness for Amplifiers, 4 Channel RCA Pre-Output Ready to Use - Great for Upgrade Your Motorcycle Sound System - Image 5](https://m.media-amazon.com/images/I/71qtQ0Jj0ML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to do
*by B***N on February 15, 2026*

Easy to do plug and play

### ⭐⭐⭐⭐⭐ Great product
*by J***N on August 11, 2025*

Made it easy to run an amp for my speakers with my stock radio without having to have it programmed.

### ⭐⭐⭐⭐⭐ Great product
*by A***M on April 26, 2025*

Perfect fit. Sure made the install easier.

## Frequently Bought Together

- DS18 RY-Harness.HD Harley Davidson Plug and Play Harness for Amplifiers, 4 Channel RCA Pre-Output Ready to Use - Great for Upgrade Your Motorcycle Sound System
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- DS18 AMPKIT4 4 Gauge Amp Installation Wiring Kit - Amplifier Installation Kit 4 GA - A Car Amplifier Wiring Kit Simplifies Wire Connections and Delivers Power to Your Radio, Subwoofers, and Speakers

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**Shop now:** [https://www.desertcart.com.au/products/481763701-ds18-ry-harness-hd-harley-davidson-plug-and-play-harness](https://www.desertcart.com.au/products/481763701-ds18-ry-harness-hd-harley-davidson-plug-and-play-harness)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-04*