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Metra 70-8114 Factory Integration Adapter

Retain steering wheel audio controls in 2003-up Toyota-built vehicles without splicing (requires item #120ASWC1, sold separately)

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  • Metra 70-8114 Factory Integration Adapter

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Our take on the Metra 70-8114 Factory Integration Adapter

by John Pollard

Metra's 70-8114 harness allows you to connect the steering wheel audio controls in 2003-up Toyota-built vehicles (if equipped) to a new car stereo without having to splice into your factory wiring.

To use this harness, you'll need the Axxess ASWC-1 steering wheel control interface (sold separately) and a compatible aftermarket radio (won't work with Parrot, Rosen, or Car Show radios). You'll also need a vehicle-specific wiring harness to install your aftermarket stereo. We'll show you the correct harness when you enter your vehicle information into our online vehicle selector.

Once you've connected this harness to your new receiver's rear RCA auxiliary input, you'll also be able to use the handy auxiliary input in your Toyota. This adapter will work with any 2003-up Toyota, Lexus, and Scion vehicle equipped with steering wheel audio controls. Warranty: 60 days.

Important note: The aftermarket radio you install must have a rear RCA auxiliary input if you wish to retain your factory auxiliary input.

See more info on this item

Note: Most vehicles will require additional installation parts — please identify your vehicle if you haven’t done so, then check here for a list of parts. You can also call an Advisor for more information.

Hands-on research from the Crutchfield Labs (what are the Labs?)

Product Research
What's in the box?

Download owner's manual

  • Receiver wiring harness
  • Instructions

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

SWC Add-on Harness for Toyota/Lexus/Scion: When installing an aftermarket radio in  your 2003-up Toyota, Lexus, or Scion vehicle, the Metra 70-8114 harness allows you to retain your factory installed steering wheel controls without having to splice into your vehicle's factory wiring (120ASWC1, required & sold separately). In addition, the 70-8114 harness includes stereo male RCA connectors to allow you to retain your factory installed 3.5mm jack (your aftermarket radio must also have a rear-panel stereo Aux input).

Note: This is an optional harness; a main power and speaker harness is still required and sold separately. Please visit the Crutchfield Car Selector for your specific type of vehicle.

Wire Code Chart:

Wire Color Function
Red +12 Volt Accessory
Black Chassis Ground
3.5mm Jack (male) SWC output
White RCA (male) Aux input (left)
Red RCA (male) Aux input (right)

 

 
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Metra 70-8114 Factory Integration Adapter Reviews

Average Customer Review:

36 people say:

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2 out of 5

Metra 70-8114 Factory Integration Adapter

Written By RonF, Eldersburg, MD on Thursday, July 03, 2014
Crutchfield Customer Review (What's this?)
 
Appears like it would work, designed to eliminate cutting 3 wires from factory wiring, but once I went to install the plug was the incorrect size. Called Crutchfield and emailed them a pic, they were not sure why the plug was a different size, but refunded me the price of this item and let me keep it. Made sure I had instructions how it install without this item.
Pros:
Good in theory
Cons:
Plug was wrong size for my 05 Tacoma with non JBL head unit.
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4 out of 5

Metra 70-8114 Factory Integration Adapter

Written By Anonymous, Valrico, Fl on Tuesday, June 24, 2014
Crutchfield Customer Review (What's this?)
 
Works really well. Directions that come with it are not that great but I got the company rep on the phone and he has me all fixed up quick.
Was this review helpful?    Yes | No
 
5 out of 5

get one

Written By Eric, crested butte, co on Sunday, June 22, 2014
Crutchfield Customer Review (What's this?)
 
This replaces the plug that comes w your steering wheel controll module. It takes all the unused wires out. Makes it very easy to understand.
Pros:
Easy
Was this review helpful?    Yes | No
 
5 out of 5

Easy to install

Written By alaskagoldman, Fairbanks, AK on Monday, June 02, 2014
Crutchfield Customer Review (What's this?)
 
cables are high quality and easy to connect to the system. Good instructions.
Pros:
Good Price, easy to install.
Cons:
can't think of any
Was this review helpful?    Yes | No
 
4 out of 5

Metra 70-8114 Factory Integration Adapter

Written By Jay, Boothwyn, pa on Saturday, May 03, 2014
Crutchfield Customer Review (What's this?)
 
great product works as if nothing has changed just make sure you make the call to crutchfield to be sure you have the special adaptor.
Cons:
when combining the two instruction sheets thing can become a little unclear.
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5 out of 5

SWC adapter

Written By Kyle c, Louisville ky on Monday, April 28, 2014
Crutchfield Customer Review (What's this?)
 
I installed this in my 2006 toyota camry amd it works great. simple and easy to follow instructions, and it synced right up.
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4 out of 5

Metra 70-8114 Factory Integration Adapter

Written By Anonymous, palm beach gardens,fla on Monday, April 21, 2014
Crutchfield Customer Review (What's this?)
 
the fit was good it did exactly what I needed it too
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5 out of 5

Flawless

Written By Eddy V, Lilburn, GA on Monday, April 21, 2014
Crutchfield Customer Review (What's this?)
 
I wired it up as per the drawing and it worked flawlessly. Can't ask for more
Pros:
Works perfectly.
Cons:
Read the drawings carefully.
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5 out of 5

Very good cable harness

Written By Mark, VA on Thursday, April 17, 2014
Crutchfield Customer Review (What's this?)
 
My specific product (for 2009 Toyota Tacoma) allowed the ability to not create wire connections (soldering or crimping) in the vehicle and allows you to simply plug into the wiring harness for the steering wheel controls and mate up to the the ASWC1 steering wheel control module and head unit (radio).
Pros:
Works as expected. No splicing of wires in the vehicle.
Cons:
The RCA plugs could have come with some plastic/rubber plug covers as these will not be usable for everyone (like myself). Instructions are not self-evident on what plug goes where. I am not a person who just slaps together connections just because "they look like they go there". A phone call to Crutchfield solved my questions.
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5 out of 5

Works great, don't forget the resistor!

Written By Chas, San Marcos, CA on Monday, March 31, 2014
Crutchfield Customer Review (What's this?)
 
The directions come in a PDF with an email confirmation of your order; so I didn't follow them during the initial installation. So I missed a crucial step of installing a small resistor on the car's factory wire harness which ensures compatibility with the car's built in multifunction display.
Pros:
Professional installation appearance.
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5 out of 5

Adapter

Written By modell, Charlotte, NC on Tuesday, March 11, 2014
Crutchfield Customer Review (What's this?)
 
Easy install
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5 out of 5

Quick to add

Written By matt, texas on Monday, February 03, 2014
Crutchfield Customer Review (What's this?)
 
This was very easy to wire in to the steering wheel control harness. After that, it connected directly to the factory harness.
Pros:
Everything was great
Cons:
I don't think this is available for very many vehicle types.
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5 out of 5

Works great!

Written By Bob S., San Diego, CA on Thursday, January 23, 2014
Crutchfield Customer Review (What's this?)
 
Hook up a few wires and turn on your new stereo....done. This adapter learns what car you have and works right away. Couldn't be any simpler.
Pros:
Works great!
Cons:
None.
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4 out of 5

Did the job

Written By NHDH, Derry, NH on Thursday, January 16, 2014
Crutchfield Customer Review (What's this?)
 
Used this to install a replacement Pioneer stereo to the factory harness on a 2003 Toyota Sequoia. Don't over think it and this works as intended. This probably should have been a lot easier for me, but with several integration adapters (stereo to car harness, stereo to steering wheel harness) it was a little confusing. Called Crutchfield support and they worked me through it. Did not have to splice anything.
Pros:
No splicing.
Cons:
Not that obvious how it goes together with other wiring.
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4 out of 5

Like a Glove!

Written By Kana11, San Jose CA on Tuesday, December 31, 2013
Crutchfield Customer Review (What's this?)
 
Makes it so easy to install
Pros:
Fast & easy to install!
Cons:
Only thing I wish it had was USB adapter for the USB set up in my car
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5 out of 5

Make Life Easy

Written By David P, Houston, TX on Monday, December 30, 2013
Crutchfield Customer Review (What's this?)
 
This adapter made the installation so easy and quick. It was well worth it.
Pros:
Easy to install, easy to use, saves lots of time
Cons:
none
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5 out of 5

Wiring harness

Written By Dick, Brooklyn, ct. on Tuesday, November 26, 2013
Crutchfield Customer Review (What's this?)
 
Easy installation and perfect fit to mate to the factory radio harness.
Pros:
Easy installation
Cons:
None
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5 out of 5

Time saver!

Written By Kevin, Fort Worth, TX on Sunday, September 01, 2013
Crutchfield Customer Review (What's this?)
 
Easy to install, definitely worth the money.
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5 out of 5

Works Great

Written By Dave M, Alpharetta, GA on Sunday, August 25, 2013
 
Works just as it should, integrated seamlessly with my DDX470.
Pros:
No cutting and splicing.
Cons:
Not offered as package with the AXCESS module. Would be a convenient kit.
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3 out of 5

as advertised

Written By Davey, Pittsburgh, PA on Tuesday, August 20, 2013
Crutchfield Customer Review (What's this?)
 
Works as it should
Pros:
Simple
Cons:
Price
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5 out of 5

Saves time and frustration

Written By Nathan, Albuquerque, NM on Thursday, July 25, 2013
Crutchfield Customer Review (What's this?)
 
This little beauty saved me several hours of wire splicing and headache. While it wasn't obvious where to use it at first, as soon as I did I was thrilled to have it. MUST HAVE!
Pros:
Simple, Easy, Saves a lot of time
Cons:
Not very self-explanatory as to where to use it.
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5 out of 5

Excellent product

Written By James D, Hendersonville NC on Tuesday, July 23, 2013
Crutchfield Customer Review (What's this?)
 
This made the installation too simple. In my 2011 Tacoma I installed a JVC KWNT510hdt and the Axxess ASWC-1 to keep my steering wheel controls. I pre-soldered all my connections and my installation inside the vehicle was about 20 minutes total. Crutchfield instructions were way better than the ones included with the product.
Pros:
Very simple with Crutchfield instructions
Cons:
None to date.
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4 out of 5

Wiring for Steering wheel controls

Written By Brian R, NH on Saturday, July 20, 2013
Crutchfield Customer Review (What's this?)
 
This comes with 2 harnesses, one you will use and one you will not. At most you might have to use 3 wires in the bundle. It has a 1/8" phono jack to interface with the radio (JVC) I ended up heat shrinking mione so they would not pull apart. Over all easy to hook up.
Pros:
Comes with 2 cables sets, Pick the one you need.
Cons:
This harness requires you to cut into your factor harness for proper connection. It should have connector that you can plug in to the factory plug. Was not wild a phono jack in the dash can some loose or pick up noise over time.
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5 out of 5

Great accessory

Written By Dan M., Kalamazoo, MI on Wednesday, July 10, 2013
Crutchfield Customer Review (What's this?)
 
Highly recommend.wires into the head unit harness and makes everything very easy. Without this it is splicing into the harness in the dash.
Pros:
So easy I had to call Crutchfield support, who answered on the second ring on a Friday night. Thought I had left something out, but is that easy.
Cons:
None
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5 out of 5

Great addition to my System

Written By Anonymous, moorestown, nj on Monday, July 01, 2013
Crutchfield Customer Review (What's this?)
 
This adapter was very helpful when connecting my factory steering wheel controls to my aftermarket head unit. Would recommend this to anyone with a tC who doesn't wanna mess with all the wire splicing.
Pros:
Easy install
Cons:
None
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4 out of 5

Great. Does exactly what it's supposed to.

Written By JC, Seattle Area, WA on Friday, June 28, 2013
Crutchfield Customer Review (What's this?)
 
Does what it advertises. You aoid splicing any dash wiring. only reason I gave it four stars vs. five is because it still required splicing to aftermarket receiver hardness and AWSC-1.
Pros:
Does what it advertises
Cons:
Still needed to slive w/aftermarket wires.
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5 out of 5

This should be a no-brainer

Written By Bob, Mpls,MN on Thursday, May 09, 2013
Crutchfield Customer Review (What's this?)
 
This should be standard issue if you have steering wheel controls. Works with the Axxess ASWC-1. Allows you to use the OEM Aux outlet in the car as well! No taping into ANY car wiring.
Pros:
Easy. Allows OEM AUX use
Cons:
Had to do a little digging to find this on the website. Should be front and center!
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3 out of 5

Not Easy

Written By Mr. B, Salinas, CA on Saturday, April 20, 2013
Crutchfield Customer Review (What's this?)
 
3 stars if I can get it to work.
Pros:
easy to install
Cons:
instructions might as well be greek.
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5 out of 5

Steering wheel control harness

Written By Charlie, Chico ca. 95926 on Saturday, March 23, 2013
Crutchfield Customer Review (What's this?)
 
Steering wheel harness came on time ,& came with good directions & great tec support .
Pros:
Product worked like it was suppost to!
Cons:
Couldn't find eny problems with product.
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5 out of 5

A must

Written By Tommy, Gansevoort, NY on Monday, March 18, 2013
Crutchfield Customer Review (What's this?)
 
This makes installation simplified for 2010 tundra only had to splice into pos and neg wires wish it could get power through old steering wheel harness (another connector)
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5 out of 5

Perfect on a 2005 Rav4! Wish I bought it sooner.

Written By Eric B., Rochester, NY on Friday, March 01, 2013
Crutchfield Customer Review (What's this?)
 
If you're replacing the factory stereo in your vehicle, and want to use an adapter to continue using the steering wheel controls, save yourself the headache and buy this adapter (if it is compatible with your car). I spent hours trying to figure out the confusing instructions for the control adapter, and then troubleshoot the wiring connections that I had to splice into the original factory wiring. With this adapter the only wiring I needed to do was to tie into the power connections that made with the aftermarket radio adapters. Now the whole system is easily disconnected from the factory plugs in the dash, which is a great perk for when I move on to the next vehicle and want to put the factory stereo back in place.
Pros:
Perfect fit with factory steering wheel control plug. Maintained same wire coding scheme as the control adapter I used. Only needed to solder power connections, all others were removable plugs or were pre-wired.
Cons:
The extra RCA connectors aren't necessary unless you have an AUX input on the back of your stereo, which just adds more wires in the dash. Was not included or promoted as an add-on by Crutchfield when I purchased the control adapter.
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5 out of 5

2004 Sienna XLE Steerign wheel adapter

Written By Erik, Maryland on Monday, February 25, 2013
Crutchfield Customer Review (What's this?)
 
I bought an ASWC for my steering wheel but I have to splice in the wiring of my car. To prevent splicing, I bought this adapter for the adapter and it connects right into the steering wheel connectors and plugged right in the back of my after market Navigation unit.
Pros:
Perfect fit
Cons:
None
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5 out of 5

Worked great on 2005 Toyota Rav4!

Written By Andrew, North Aurora, IL on Wednesday, December 26, 2012
Crutchfield Customer Review (What's this?)
 
Worked great on Toyota Rav4! I had it installed wrong on a JVC radio at first and found the instructions on the Axxess website to resolve the issue. The 3.5mm male plugs into a special 3.5mm female and a wire attaches to the JVC radio harness, which keeps the rear aux port of the JVC radio open for Bluetooth or other things.
Pros:
Works great and eliminates splicing. Only have to connect ignition power and ground.
Cons:
Had to use Axxess website for further instructions. Manual not very clear.
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5 out of 5

This makes it easy, so worth it.

Written By saxman0321, Asheville, NC on Tuesday, December 04, 2012
Crutchfield Customer Review (What's this?)
 
This part is worth every penny. If you want to integrate steering wheel controls into an aftermarket head unit, this Toyota specific adapter makes it super easy. Just plug it into the car's wiring harness, then plug the 3.5mm plug into the head unit (Alpine CED-136BT in my case) and you're done.My application was a 2006 Toyota Highlander Hybrid Limited, and all I had to do was press the volume up button once everything was installed, and it figured out the rest. The guy at the local shop was telling me how hard it is to make steering wheel controls work with aftermarket head units and wanted an extra $50 to do it. I do all my own work, it's easy just try it!
Pros:
Makes integrating steering wheel controls as easy as it gets.
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5 out of 5

Easy installation and straight forward

Written By Scionicboom, Grovetown, GA on Saturday, March 24, 2012
Crutchfield Customer Review (What's this?)
 
I used this with my Access ASWC and Kenwood head unit. Worked like a charm and there was no splicing of wires.
Pros:
Everything
Cons:
Nothing
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4 out of 5

Metra Toyota-specific Harness - 2010 Tacoma Dbl Cab

Written By Stormin, Charlotte on Monday, March 05, 2012
Crutchfield Customer Review (What's this?)
 
Used this in conjunction with the Metra universal steering wheel control accessory. Was a plug and chug, nothing to splice, everything fit into where it was supposed to go. Installed clean on a 2010 Tacoma with no JBL system and new Pioneer DEH-P8400BH. Seemed to not learned all the buttons when initially hooked up, but gained functionality on the second try. My up/down buttons do not scroll through the pre-set tuner stations. Up/Down buttons do change the tuner frequency and works fine scrolling through songs when in USB mode.
Pros:
Easy set-up. Plug and chug, nothing to splice. Once you have steering wheel controls, it tough to give up their functionality.
Cons:
Price, considering it is used in conjunction with the already pricey accessory.
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For a more in-depth review and enhanced detailed information on the Metra 70-8114 Factory Integration Adapter, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_120708114/Metra-70-8114-Factory-Integration-Adapter.html ).

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