---
product_id: 269037453
title: "70-5521 Radio Wiring Harness for Ford 03-Up Amp - Cream/red/white/grey"
brand: "metra"
price: "90.64 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Metra"
url: https://www.desertcart.tn/products/269037453-70-5521-radio-wiring-harness-for-ford-03-up-amp
store_origin: TN
region: Tunisia
---

# 1.5K Ohm resistor for pop elimination 24-pin & 8-pin power plugs 2 RCA plugs for pre-amp outputs 70-5521 Radio Wiring Harness for Ford 03-Up Amp - Cream/red/white/grey

**Brand:** metra
**Price:** 90.64 DT
**Availability:** ✅ In Stock

## Summary

> 🔊 Upgrade your Ford’s sound system without the hassle—plug in, power up, and own the road!

## Quick Answers

- **What is this?** 70-5521 Radio Wiring Harness for Ford 03-Up Amp - Cream/red/white/grey by metra
- **How much does it cost?** 90.64 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/269037453-70-5521-radio-wiring-harness-for-ford-03-up-amp)

## Best For

- metra enthusiasts

## Why This Product

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

## Key Features

- • **Pop-Free Power-Up:** Built-in 1.5K Ohm resistor eliminates annoying turn-on pops for a premium audio experience.
- • **Durable Copper & TPU Build:** High-quality materials ensure long-lasting performance and resistance to wear and tear.
- • **Precision RCA Connectivity:** Dual RCA plugs ensure crystal-clear signal transfer to your aftermarket radio’s pre-amp outputs.
- • **Seamless Factory Amp Integration:** Plug-and-play design preserves your OEM wiring—no cutting or splicing needed.
- • **Tailored for 2003-2005 Ford Models:** Custom-fit harness engineered specifically for select Ford vehicles, guaranteeing perfect compatibility.

## Overview

The Metra 70-5521 Radio Wiring Harness is a precision-engineered solution designed for select 2003-2005 Ford vehicles. Featuring 24-pin and 8-pin power connectors alongside dual RCA plugs, it enables seamless integration of aftermarket radios with factory amplifiers. Its built-in 1.5K Ohm resistor eliminates turn-on pops, ensuring a clean audio start. Crafted from durable copper and TPU, this harness preserves OEM wiring integrity, making installation straightforward and reliable.

## Description

Amplifier Harness for Select 2003-2005 Ford Vehicles

Review: Excelente producto - El arnes quedó a la perfección, muchas gracias solo que al querer conectar el arnes chico mi camioneta ya no trae el conector macho que es para el subwoofer de fabrica que trae la camioneta la cual es una explorer eddie bauwer 2005.
Review: Does the job, I was just unclear as to wether I needed the amp out plug - Just bought a ‘04 Lincoln Town Car and didn’t know wether it had an amp/sub or not(couldn’t speak with original owner as it was purchased through a family member and the manual was missing) so I went with this harness because if I didn’t need the amp out harness no big deal, but if I did...well then I’d need it lol. The harness itself is perfect for what it is, a simple harness to prevent cutting and splicing the OEM harness, wires were clearly marked and colors matched the harness for the after market stereo. Went with the Pioneer AVH-X490BS, if you get a pioneer look into getting the parking brake bypass switch. The only problem is that there was nowhere to connect the two blue wires on the harness with the RCA plugs, so I assumed I didn’t need it and just didn’t use it. Reconnected negative terminal on battery and tested radio and it worked great so I figured I was right. I go to install the Infinity Kappa speakers in the rear deck(btw if you have a Town Car be ready to take out the entire rear seat, both bottom and rear cushions to get access to the speakers......) and guess what I see?? A sub and amp.... I was planning on getting an amp for the speakers anyways, and maybe a 8” sub just for a little bass so I’ll just wait to get them rather than hook up the factory amp/sub. If you're replacing a radio you can’t go wrong with Metra, always quality products. Been using them as long as I can remember, and between work, my personal vehicles and friends/family I’ve installed more car stereos and speakers than I can remember and never had an issue with Metra.

## Features

- Factory amplifier integration harness
- 2 RCA Plugs plug into aftermarket radio's pre-amp outputs
- One 24-pin power plug and one 8-pin subwoofer plug
- 1.5K Ohm resistor can be used on the amp-remote wire to eliminate turn-on pop
- Allows for the installation of an aftermarket radio using the existing factory wiring and connectors

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000K50GTA |
| Best Sellers Rank | #101,853 in Electronics ( See Top 100 in Electronics ) #122 in Car Wiring Harnesses |
| Brand | Metra |
| Brand Name | Metra |
| Cable Type | RCA |
| Connector Type | RCA plug, power 24 pin and 8 subwoofer connector |
| Connector type | RCA plug, power 24 pin and 8 subwoofer connector |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 3,745 Reviews |
| Global Trade Identification Number | 00086429129522 |
| Included Components | Wiring Harness |
| Item Dimensions | 1 x 1 x 1 millimeters |
| Item Type Name | Sub-Plug For Select 2003-2005 Ford Vehicles With Premier Radio |
| Item Weight | 0.02 Pounds |
| Item dimensions L x W x H | 1 x 1 x 1 millimeters |
| Item weight | 0.02 Pounds |
| Manufacturer | METRA Ltd. |
| Material | Copper , TPU |
| Material Type | Copper, TPU |
| Model | 70-5521 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 70-5521 |
| UPC | 086429129522 |
| Unit Count | 1 Count |
| Wire Diameter | 0.06 Inches |
| Wire diameter | 0.06 Inches |

## Product Details

- **Brand:** Metra
- **Connector type:** RCA plug, power 24 pin and 8 subwoofer connector
- **Item dimensions L x W x H:** 1 x 1 x 1 millimeters
- **Item weight:** 9 g
- **Material:** Copper, TPU

## Images

![70-5521 Radio Wiring Harness for Ford 03-Up Amp - Cream/red/white/grey - Image 1](https://m.media-amazon.com/images/I/61CORK-mQCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excelente producto
*by E***. on 26 January 2023*

El arnes quedó a la perfección, muchas gracias solo que al querer conectar el arnes chico mi camioneta ya no trae el conector macho que es para el subwoofer de fabrica que trae la camioneta la cual es una explorer eddie bauwer 2005.

### ⭐⭐⭐⭐⭐ Does the job, I was just unclear as to wether I needed the amp out plug
*by J***F on 27 May 2018*

Just bought a ‘04 Lincoln Town Car and didn’t know wether it had an amp/sub or not(couldn’t speak with original owner as it was purchased through a family member and the manual was missing) so I went with this harness because if I didn’t need the amp out harness no big deal, but if I did...well then I’d need it lol. The harness itself is perfect for what it is, a simple harness to prevent cutting and splicing the OEM harness, wires were clearly marked and colors matched the harness for the after market stereo. Went with the Pioneer AVH-X490BS, if you get a pioneer look into getting the parking brake bypass switch. The only problem is that there was nowhere to connect the two blue wires on the harness with the RCA plugs, so I assumed I didn’t need it and just didn’t use it. Reconnected negative terminal on battery and tested radio and it worked great so I figured I was right. I go to install the Infinity Kappa speakers in the rear deck(btw if you have a Town Car be ready to take out the entire rear seat, both bottom and rear cushions to get access to the speakers......) and guess what I see?? A sub and amp.... I was planning on getting an amp for the speakers anyways, and maybe a 8” sub just for a little bass so I’ll just wait to get them rather than hook up the factory amp/sub. If you're replacing a radio you can’t go wrong with Metra, always quality products. Been using them as long as I can remember, and between work, my personal vehicles and friends/family I’ve installed more car stereos and speakers than I can remember and never had an issue with Metra.

### ⭐ Be Careful
*by E***P on 12 August 2020*

This just arrived after waiting patiently for its arrival from the USA. Unfortunately this does not fit the Ford Explorer 05 as stated. Good quality item, but clearly a waste of time and money as seller is USA based, this isn't worth a return!

## Frequently Bought Together

- Metra 70-5521 Radio Wiring Harness for Ford 03-Up Amp, computer
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- Metra Electronics 70-5520 Wiring Harness for Select 2003-Up Ford Vehicles, MULTI COLOR

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-10-03*