Crux CS-TJ20 Wiring Interface Connect a new car stereo and retain the steering wheel audio controls and aux input in 2003-19 Toyota-built vehicles

Name: Crux CS-TJ20 Wiring Interface
Brand: CRUX
SKU: 249CSTJ20
Rating: 4.5 (125 reviews)

Item # 249CSTJ20

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Item # 249CSTJ20

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Shop all CRUX Radio replacement interfaces & harnesses

You'll only be able to retain your steering wheel audio controls with a compatible car stereo made by Alpine, Boss, Blaupunkt, Clarion, Dual, Jensen, JVC, Kenwood, Pioneer, Sony or Soundstream. No other brands are currently compatible.

Keep those factory options

Crux's CS-TJ20 interface ensures that you can keep the factory steering wheel controls and the factory JBL amplifier in your Scion, Toyota, or Lexus when you install an aftermarket radio. Another plus — your Toyota's auxiliary input will still work with your new car stereo. Connect this interface to the wires on your new stereo's wiring harness, and you've covered the power, ground, and factory speaker connections for your new stereo. You'll also be able to keep your backup camera (if present) in select vehicles. This adapter has RCA jacks to connect to your car stereo's rear aux input; you'll need an RCA-to-miniplug adapter if your stereo has a minijack.

Product highlights:

connect a new stereo in select 2003-up Toyota-built vehicles
retain your steering wheel controls with select car stereos
retains factory aux input
retains JBL amplifier (does not retain fader control)
retains backup camera (if present) in select vehicles
warranty: 1 year
MFR # CS-TJ20
Item # 249CSTJ20
California customers: Please click here for your Proposition 65 WARNING.

What's in the box:

Crux CS-TJ20 Wiring Interface owner's manual

Radio replacement interface
TY-A harness
TY-B harness
Camera retention harness
16 to 24-Pin camera harness
SWC harnes (Kenwood/JVC/Clarion/Alpine)
SWC harness (Pioneer/Sony)
Boss radio SWC connector
Installation Instructions

Featured review

easy to install and works great, had the harness prewired so just had the microphone, 2 wiring harness and the steering wheel controls to plug in the interface, plugged the antenna into the radio and everything worked

Mark from Commerce Twp, MI

See all 125 reviews

Customer Q&A

Do you need any other harnesses or adapters besides this kit to wire an aftermarket market head unit in a 2006 Toyota Sequoia with the JBL system?

Greetings Shawn. Thank you for your question. This Crux interface is al you would need to wire in your new stereo.

Researched by Crutchfield's Stacey B.

The Crux CS-TJ20 Wiring Interface replaces these items:

Crux SWRTY-61J Wiring Interface

Product Research

Features

Radio Replacement Interface: The CRUX CS-TJ20 is a radio replacement interface for select Toyota and Lexus vehicles with factory JBL audio systems. It facilitates the integration of an aftermarket radio and enables retention of factory features when replacing a factory installed radio in select Toyota and Lexus vehicles featuring factory JBL audio systems. The CRUX CS-TJ20 is also pre-programmed for retention of factory steering wheel controls.

Vehicle Compatibility: The CRUX CS-TJ20 radio replacement interface works with the following 2003-2017 Toyota and Lexus vehicles featuring factory JBL audio systems.

Make	Model	Year
Toyota	4 Runner	2003-2019
	Avalon	2005-2018
	Camry	2007-2017
	Camry Solara	2004-2008
	Corolla	2009-2017
	FJ Cruiser	2007-2014
	Highlander	2008-2018
	Matrix	2005-2012
	Prius	2004-2017
	Rav4	2004-2018
	Sequoia	2005-2018
	Sienna	2004-2016
	Tacoma	2005-2019
	Tundra	2004-2019
	Venza	2009-2015
	Yaris	2008-2011
Lexus	ES300	2004-2006
	IS300	2003-2005
	LS430	2006 (does not retain steering wheel controls)

Note: The CRUX CS-TJ20 comes with two types of wiring harnesses (TY-A and TY-B). The TY-A harness is used for newer model vehicles only, while the TY-B harness is for older model vehicles only. You will only use one; not both.

Retains Factory Amplifier: The CRUX CS-TJ20 will retain your vehicle's factory JBL Harman-Becker Digital-Synthesis Amplifier, including JBL (Pioneer-made) amplifiers. Use the three gain adjustment dip-switches to level match your aftermarket head unit's output with the factory amplifier's input. Balance (left/right) control is supported. However, fading (front/rear) control is not supported and lost when replacing the factory radio with an aftermarket head unit.

Retains Steering Wheel Controls: The CS-TJ20 will retain your vehicle's factory steering wheel controls. Two steering wheel control harnesses are included, but only one will be used based on your brand of aftermarket head unit (see Installation Instructions). You will also need to configure the CS-TJ20's three dip-switches based on your brand of aftermarket head unit (see Installation Instructions). Retained steering wheel control functions will vary by brand of aftermarket head unit (some functions require short or long button press).

Power/On Off
Source
Volume Up/Down
Mute
Track/Seek Up, Track/Seek Down (including Presets)
Pick Up/End Call
Voice Control (requires aftermarket head unit with Siri or Android control)

Note: The CS-TJ20 is compatible with Alpine, Clarion, Boss, Dual/Axxera, JVC, Kenwood, Jensen, Pioneer, and Sony aftermarket head units with steering wheel control wire or input.

Retains Factory Aux Input: The CS-TJ20 lets you retain your vehicle's factory Auxiliary Input through the use of your aftermarket head unit's rear-panel Aux input. The CS-TJ20 is outfitted with stereo RCA jacks, so if your aftermarket head unit features a 3.5mm jack, you will need a RCA-to-Minijack adapter (sold separately).

Retains Factory Backup Camera: The included TY-A harness features a composite video jack and a 12V-to-6V voltage converter to retain your vehicle's factory backup camera (if equipped). Your aftermarket head unit will need a composite video camera input to retain your vehicle's camera backup camera.

Note: The included TY-B harness does not retain the factory backup camera.

Navigation Outputs: The included TY-A harness provides a Parking Brake, VSS (vehicle speed sense), and a Reverse Gear output to make installing an aftermarket navigation head unit simpler and less time consuming.

The Crux CS-TJ20 Wiring Interface replaces these items:

Crux SWRTY-61J Wiring Interface

Connect a new car stereo and retain the steering wheel audio controls and aux input in 2003-2012 Lexus and Toyota vehicles

51 reviews

retain your steering wheel controls with select car stereos
retains factory aux input
retains JBL amplifier (does not retain fader control)

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9 questions already asked

Do you need any other harnesses or adapters besides this kit to wire an aftermarket market head unit in a 2006 Toyota Sequoia with the JBL system?

mctwins Aug 20, 2024

1 answer

Greetings Shawn. Thank you for your question. This Crux interface is al you would need to wire in your new stereo.

thomas Aug 20, 2024 (Staff)

Do you need any other harnesses or adapters besides this kit to wire an aftermarket market head unit in a 2006 Toyota Sequoia with the JBL system?

mctwins Aug 20, 2024

1 answer

I am happy to help, Shawn. In addition to your new radio and the Crux CS-TJ20 wiring interface, you will also need a dash kit. Use our online Vehicle Guide in the link below to enter your Sequoia's exact details, choose your radio, and we will list the installation packages and make sure you get all the extra parts you need for a successful install. If you need any help building your package or placing your order, do not hesitate to call us at 1-800-324-9695 and a live Advisor would be happy to assist. https://www.crutchfield.com/m_266150/Car-Stereos.html

bo Aug 20, 2024 (Staff)

Does this product retain the rear speakers? I've heard conflicting info in the reviews. I was also wondering what the install process is like and how easy it is. Thanks!

meeka Aug 14, 2024

1 answer

When this is installed into compatible vehicles, it will allow all the stock speakers including the rear speakers to work. It does not retain the ability to fade the audio. I recommend contacting an advisor by calling 1-800-324-9695 to check compatibility with your vehicle.

jason Aug 15, 2024 (Staff)

If no fade setting, does that means it will be center with front and rear speaker working?

kalape Apr 19, 2024

1 answer

Greetings Cheng. That is an excellent question. ?Balance and fade will be lost when the factory radio is removed. This Crux will not auto center the balance and or fade. You must do this on the factory radio, before removing the factory radio.

thomas Apr 19, 2024 (Staff)

What do i connect the steering wheel remote input wire off the radio to in an 03 tubdra?

logan Aug 14, 2021

1 answer

If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the connections on the product. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.

kenneth Aug 16, 2021 (Staff)

I have it but I don't know what number to put to make it work on my 2004 limited toyota 4runner. can you help me with this? I will appreciate it

bartolomeo Mar 18, 2021

1 answer

We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.

thomas Mar 30, 2021 (Staff)

Will this work on a 2010 scion tc?

paul Jan 21, 2021

1 answer

You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.

thomas Feb 09, 2021 (Staff)

If I pre set my fade on my existing head unit will the fade settings stay once I install this and the new head unit? If so I understand that I will not be able to adjust it with out plugging in old head unit.

patrick Oct 31, 2020

1 answer

I honestly have had non-stop issues with it. Some days it works and other days it doesn't. I wish I could give you better information. I'm about to swap it out for another brand. My install guy agrees.

guy Nov 01, 2020

I have a 2006 toyota sequoia with JBL. Will this work? And will i need something else to use the steering wheel controls? Thanks.

madjassah Apr 21, 2020

1 answer

It worked on my 2005 Seinna with JBL system. Steering wheel controls work. Only thing that doesn't work is fade front to back.

brian Apr 21, 2020

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Crux CS-TJ20 Wiring Interface Connect a new car stereo and retain the steering wheel audio controls and aux input in 2003-19 Toyota-built vehicles

Does it Fit your car?

Find what Fits your vehicle

Find what Fits your vehicle

Installation notes:

Additional items are required:

About the Crux CS-TJ20 Wiring Interface

Keep those factory options

Product highlights:

What's in the box:

Featured review

Customer Q&A

More details on the Crux CS-TJ20 Wiring Interface

Product Research

Features

The Crux CS-TJ20 Wiring Interface replaces these items:

Crux SWRTY-61J Wiring Interface

Customer Q&A

9 questions already asked

SpeakerCompare^™

Patented Virtual Audio^™ technology

SpeakerCompare^™

Patented Virtual Audio^™ technology

Audition speakers before you buy

SpeakerCompare^™

What to listen for

Track notes

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