---
product_id: 136074313
title: "Metra 70-8114 Steering Wheel Control Wire Harness with RCA for 2003-Up Select Toyota/Scion/Lexus Vehicles"
brand: "metra"
price: "€ 45.32"
currency: EUR
in_stock: true
reviews_count: 5
category: "Metra"
url: https://www.desertcart.es/products/136074313-metra-70-8114-steering-wheel-control-wire-harness-with-rca
store_origin: ES
region: Spain
---

# Includes RCA for 3.5mm jack retention 20-pin connector compatibility Retains factory steering wheel controls Metra 70-8114 Steering Wheel Control Wire Harness with RCA for 2003-Up Select Toyota/Scion/Lexus Vehicles

**Brand:** metra
**Price:** € 45.32
**Availability:** ✅ In Stock

## Summary

> 🎯 Upgrade your drive—retain control, style, and sound effortlessly!

## Quick Answers

- **What is this?** Metra 70-8114 Steering Wheel Control Wire Harness with RCA for 2003-Up Select Toyota/Scion/Lexus Vehicles by metra
- **How much does it cost?** € 45.32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/136074313-metra-70-8114-steering-wheel-control-wire-harness-with-rca)

## 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

- • **Plug & Play Precision:** Designed exclusively for 20-pin Toyota/Scion/Lexus connectors for a perfect fit every time.
- • **AUX-In Ready RCA Support:** Maintain your factory 3.5mm jack functionality with included RCA cables—no compromises on sound.
- • **Expert Support On-Demand:** Access 7-day tech support to ensure smooth installation and zero downtime.
- • **Optimized for Aftermarket Radios:** Works flawlessly with aftermarket radios featuring AUX-In, elevating your in-car audio experience.
- • **Seamless Steering Control Integration:** Keep your factory steering wheel commands intact without any wiring splices.

## Overview

The Metra 70-8114 Steering Wheel Control Wire Harness is engineered for 2003 and newer Toyota, Scion, and Lexus vehicles with 20-pin connectors. It preserves factory steering wheel controls and the 3.5mm jack functionality via included RCA cables, requiring the separately sold ASWC-1 or AXSWC interface. Designed for seamless integration with aftermarket radios featuring AUX-In, it offers hassle-free installation backed by expert tech support.

## Description

When installing an aftermarket radio, the 70-8114 will allow the user to retain the factory-installed steering wheel controls without having to splice into the factory wiring (ASWC-1/AXSWC is required and sold separately). In addition, we included RCAs to allow the user to retain their factory-installed 3.5mm jack. Aftermarket radio must have an AUX-In. This is an optional harness. The main power harness is still required.

Review: I installed this on a 2007 Toyota Solara, with a Pioneer head unit. This is a great product, but you must also purchase and install the Metra ASWC-1 steering wheel control interface to make this work. I connected the wires from the white connector to the car stereo wires, and in most cases it was a simple color match, but make sure to check your specific wiring diagrams. The white connector on this harness connects to the car's steering wheel connector (formerly on the factory radio). Don't worry about which plug it goes into, because Toyota has made all the connections to their car stereos different, so this will ONLY fit on the steering wheel connector. The male 3.5 mm plug then goes into your new car stereo's wired remote input jack, typically on the rear of your head unit. Next, here's a very important point that no other reviewer has provided, and when I called Metra, they actually gave me the wrong answer - if you connect this harness, you DON'T need to use the connectors/harness that comes with the ASWC-1. Once you connect the white connector of the 70-8114 to the car's steering wheel connector, and the 3.5 mm male plug to you car stereo, you then plug the black 12-pin connector (shown in the lower left of the picture) directly into the ASWC-1 (purchased separately). One connection/plug to the ASWC-1 and you're in!! In my case I then turned the car key to the accessory position, powered on the radio, watched the LEDs on the ASWC-1 go through their initialization, characterization, and setup, and within 15 sec or so I had the steering wheel controls working - volume, up/down channel, and mode select. Works perfectly! Another lesson learned in my case was that the power antenna cable from the stereo needed to be connected to the blue cable on the 70-8114 even though my Solara doesn't have a power antenna (antenna is in windshield), it turns out that the Solara has an antenna amplifier that needs to be switched on with the stereo. Once connected, the antenna (and FM reception) was as good or better than the OEM radio. I highly recommend this 70-8114 harness along with the ASWC-1 for Toyota vehicles, when replacing an OEM car stereo.
Review: Was the perfect fit. Plugged right into the interface and into the vehicle harness.

## Features

- For vehicles with a 20-pin connector only
- Retains factory steering wheel controls
- AXSWC or ASWC-1 required and sold separately
- RCAs included to retain the factory-installed 3.5mm jack
- Aftermarket radio must have AUX-In
- A tech support number is available for installation help 7 days a week
- For vehicles with a 28-pin connector, please use the AXSWCH-T28
- Please review the Metra Electronics Vehicle Fit Guide for fitment confirmation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0064J4LOM |
| Best Sellers Rank | 1,017 in Car Wiring Harnesses |
| Department | unisex-adult |
| Item model number | 70-8114 |
| Manufacturer | Metra Electronics |
| Product Dimensions | 20.32 x 11.43 x 1.27 cm; 13.61 g |

## Product Details

- **Brand:** Metra
- **Connector type:** aux,rca
- **Item dimensions L x W x H:** 20.3 x 11.4 x 1.3 centimetres
- **Item weight:** 14 g
- **Material:** METRA 70-8114 Toyota(R) 20-Pin Steering Wheel Control Add-On Harness with RCA

## Images

![Metra 70-8114 Steering Wheel Control Wire Harness with RCA for 2003-Up Select Toyota/Scion/Lexus Vehicles - Image 1](https://m.media-amazon.com/images/I/613kTFCS0zL.jpg)
![Metra 70-8114 Steering Wheel Control Wire Harness with RCA for 2003-Up Select Toyota/Scion/Lexus Vehicles - Image 2](https://m.media-amazon.com/images/I/61N1Fhju28L.jpg)
![Metra 70-8114 Steering Wheel Control Wire Harness with RCA for 2003-Up Select Toyota/Scion/Lexus Vehicles - Image 3](https://m.media-amazon.com/images/I/61skSsNo1ZL.jpg)
![Metra 70-8114 Steering Wheel Control Wire Harness with RCA for 2003-Up Select Toyota/Scion/Lexus Vehicles - Image 4](https://m.media-amazon.com/images/I/71LkQSOtWBL.jpg)
![Metra 70-8114 Steering Wheel Control Wire Harness with RCA for 2003-Up Select Toyota/Scion/Lexus Vehicles - Image 5](https://m.media-amazon.com/images/I/71Ovrk49zaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by O***. on 2 April 2015*

I installed this on a 2007 Toyota Solara, with a Pioneer head unit. This is a great product, but you must also purchase and install the Metra ASWC-1 steering wheel control interface to make this work. I connected the wires from the white connector to the car stereo wires, and in most cases it was a simple color match, but make sure to check your specific wiring diagrams. The white connector on this harness connects to the car's steering wheel connector (formerly on the factory radio). Don't worry about which plug it goes into, because Toyota has made all the connections to their car stereos different, so this will ONLY fit on the steering wheel connector. The male 3.5 mm plug then goes into your new car stereo's wired remote input jack, typically on the rear of your head unit. Next, here's a very important point that no other reviewer has provided, and when I called Metra, they actually gave me the wrong answer - if you connect this harness, you DON'T need to use the connectors/harness that comes with the ASWC-1. Once you connect the white connector of the 70-8114 to the car's steering wheel connector, and the 3.5 mm male plug to you car stereo, you then plug the black 12-pin connector (shown in the lower left of the picture) directly into the ASWC-1 (purchased separately). One connection/plug to the ASWC-1 and you're in!! In my case I then turned the car key to the accessory position, powered on the radio, watched the LEDs on the ASWC-1 go through their initialization, characterization, and setup, and within 15 sec or so I had the steering wheel controls working - volume, up/down channel, and mode select. Works perfectly! Another lesson learned in my case was that the power antenna cable from the stereo needed to be connected to the blue cable on the 70-8114 even though my Solara doesn't have a power antenna (antenna is in windshield), it turns out that the Solara has an antenna amplifier that needs to be switched on with the stereo. Once connected, the antenna (and FM reception) was as good or better than the OEM radio. I highly recommend this 70-8114 harness along with the ASWC-1 for Toyota vehicles, when replacing an OEM car stereo.

### ⭐⭐⭐⭐⭐ Review
*by R***. on 30 September 2025*

Was the perfect fit. Plugged right into the interface and into the vehicle harness.

### ⭐⭐⭐⭐⭐ Review
*by M***Y on 14 January 2020*

My wife has a Lexus GX470 Non Nav / Non Mark Levinson Sound system. I replaced the factory head unit (Pioneer) with the Binize 10.1 inch Android HU. I got the Metra TYTO-01 kit to connect the new HU to the factory wiring harness, but the steering wheel controls for the GX470 (and likely the Toyota 4-Runner) are on a separate 20 pin plug that goes to the factory HU. Thanks to another user's review here, I was able to connect the Android (which has a SW1 and SW2 Wire) to the factory harness. Here's an excerpt of how to do it from the other user's review: For the 6 wires on the white connector, 3 are of interest. Black wire = GND (connect to GND wire of the new headunit - this is steering wheel controls GND not the main GND - you still need to connect the main ground of the HU). Green/yellow = SW1 / KEY1, green/black = SW2 / KEY2. With this, was able to get the steering wheel controls working with a new Android HU, easy as can be. (End Review) From the Binize Android Head Unit, you go to the settings page and there is a button (scroll down) on the left side that says steering wheel settings. Go in there and you will see various settings (eg. Volume Up, Volume Down, FFWD, RWD, GPS, etc.). Select the desired function onscreen and then press the steering wheel control button that you want to perform that function. I programmed Vol + Vol- Next track, Previous Track, and for the mode button I selected GPS (for which I have Waze set as my default GPS Navigator). The steering wheel controls work great and my wife is thrilled!

## Frequently Bought Together

- Metra Toyota 20-pin Steering Wheel Control Add-on Harness with RCA
- Metra 70-1761 Radio Wiring Harness For Toyota 87-Up Power 4 Speaker
- Axxess AXSWC Steering Wheel Control Interface

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-30*