CRUX CS-TJ20 Radio Replacement with Steering Wheel Control Retention Instruction Manual

June 4, 2024
CRUX

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CS-TJ20
Radio Replacement with Steering Wheel Control Retention
for LEXUS & TOYOTA Vehicles with JBL Systems

Arc-Crux Module 3v-5v SWC switch
Certain Pioneer and Boss radios will need this micro-switch flipped in order to get the steering wheel buttons to work if the dipswitch settings don’t work.
Some Boss radios volume will max out when turning the vehicle off if the micro-switch is set to 5v.
*This module has different board layouts for different harnesses. Same micro-switch though.

CRUX CS-TJ20 Radio Replacement with Steering Wheel Control Retention -
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CRUX CS-TJ20 Radio Replacement with Steering Wheel Control Retention -
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CRUX CS-TJ20 Radio Replacement with Steering Wheel Control Retention -
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PRODUCT FEATURES:

– Retains factory features in select Lexus and Toyota vehicles with JBL Harman-Becker Digital-Synthesis Amplifier, including JBL (Pioneer-made) amplifiers while functioning with an aftermarket radio.
– Pre-programmed to retain factory Steering Wheel Controls.
– iPhone Voice Recognition (VR) feature from SWC on select Kenwood, Pioneer, Alpine and JVC radios.
– Variable audio gain adjustment to level match the aftermarket radio and factory amplifier.
– Retains OEM 3.5mm Auxiliary Audio Input.
– Supports BT-HF/A2DP/AVRCP profile on select aftermarket radio models.
– Supports Pick Up/End Call, Pick up and Toggle between 1st and 2nd incoming call, AVRCP Track, Seek.
– EIA color-coded wiring for easy installation.

NOTES:

  1. Left-Right Balance Audio Control and Front-Rear Audio Fading is not supported.
  2. Please make sure factory radio Balance and Fade options are centered before removing the radio.

PARTS INCLUDED:

CRUX CS-TJ20 Radio Replacement with Steering Wheel Control Retention -
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IMPORTANT INSTALLATION NOTES:

  1. In some Lexus/Toyota vehicles 2006 and older, the mute circuit is located in the same pin location as the amplifier turn-on on the OEM harness. If no audio is heard after the installation is complete, disconnect the BLUE/WHITE wire on the CS-TJ20 T-Harness from the aftermarket radio AMP Turn-on wire. Insulate with tape to avoid short circuits.
  2. Before connecting the 3.5mm SWC Cable, thoroughly wipe it clean with the alcohol cleansing pad provided. This will ensure solid contact with the aftermarket radio SWC circuit.
  3. To retain the factory AUXILIARY INPUT option in the vehicle, the aftermarket radio must have an “Auxiliary Audio Input” feature. Please check your aftermarket radio manual for details.

INSTALLATION DIAGRAM:

CRUX CS-TJ20 Radio Replacement with Steering Wheel Control Retention -
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CRUX CS-TJ20 Radio Replacement with Steering Wheel Control Retention -
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NOTE: Aftermarket radio rear speaker output leads are not used on both harnesses. Insulate with tape.

CRUX CS-TJ20 Radio Replacement with Steering Wheel Control Retention -
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CS-TJ20 OEM Camera Retention Harness
The CS-TJ20 includes a camera harness with a 12V to 6V voltage converter to retain the OEM camera (if equipped). Some older models use a a16-Pin OEM camera connector. In this case, use the supplied 16 to 24-Pin Camera Adapter.

CRUX CS-TJ20 Radio Replacement with Steering Wheel Control Retention -
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SETTING THE AFTERMARKET RADIO BRAND

This step is done on the CS-TJ20 SWC Module. With the key in the off position, set the DIP switches to the corresponding radio listed below.

RADIO BRAND: DIP: 1 2 3
Auto, Dual, Fahrenheit, Jensen, Pioneer OFF ON ON
Power Acoustik, Soundstream OFF ON ON
Blaupunkt, Most off-brand Radios OFF ON ON
Alpine OFF OFF OFF
Clarion ON ON OFF
Kenwood ON ON ON
JVC ON OFF ON
Sony, Boss ON OFF OFF

NOTE: For Auto, Blaupunkt, Dual, Farenheit, Power Acoustik, Soundstream, and most off-brand radios, check the aftermarket radio’s manual to see if the SWC buttons need to be programmed.

4-PIN SWC CABLE

Use the proper 3.5MM to 4-Pin SWC cable for the aftermarket radio you are using.
OPTION A is used for ALPINE, CLARION, JVC, and KENWOOD units (Blue/Yellow wire is attached) OPTION B is used for BLAUPUNKT, BOSS, DUAL, FAHRENHEIT, JENSEN, POWER ACOUSTIK, PIONEER, SONY, SOUNDSTREAM, and Most Off-Brand Radios.
NOTE: Cap or insulate the 3.5mm plug or Blue/Yellow wire if not being used.
For aftermarket radios that have wires for SWC connections, cut off the 3.5mm plug on the Crux SWC Cable (option B) and connect the SWC wires as follows: Note that there are some radios that only have SWC1 and SWC2, in this case, “shield” does not need to be connected.

CRUX CS-TJ20 Radio Replacement with Steering Wheel Control Retention -
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GAIN ADJUSTMENTS:

Use the gain adjustment to level match the aftermarket radio audio output with the OE amplifier input.

DIP SETTING dB Volts

OFF OFF OFF
OFF OFF ON
OFF ON OFF
OFF ON ON
ON OFF OFF
ON OFF ON
ON ON OFF
ON ON ON| 0 dB
1.7 dB
3.5 dB
5.2 dB
7.2 dB
9.1 dB
11 db
12.9 dB| +7mV
+9mV
+10mV
+15mV
+18mV
+22mV
+27mV

CRUX CS-TJ20 Radio Replacement with Steering Wheel Control Retention -
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VEHICLE APPLICATIONS:

LEXUS

2004-2006  ES300
2003-2005 IS300
2006 LS430

TOYOTA

2003-2019 4 Runner
2005-2018 Avalon
2007-2017 Camry
2004-2008 Camry Solara
2009-2017  Corolla
2011-2014  FJ Cruiser
2008-2018 Highlander
2005-2012 Matrix
2004-2017 Prius
2004-2018 Rav4
2005-2018 Sequoia
2004-2016  Sienna
 2005-2019 Tacoma
2004-2019 Tundra
2009-2015 Venza
2008-2011 Yaris

NOTE:

Does not retain Mark Levinson, Pioneer, Nakamichi or Harmon Kardon amplifiers.

Crux Interfacing Solutions
• Chatsworth, CA 91311
phone: (8 18) 609-9299
• fax: 818-996-8188
www.cruxinterfacing.com http://www.cruxinterfacing.com

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