finding a mute wire, 2002 lexus gs 430

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Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=130501
Printed Date: May 10, 2025 at 9:30 AM

Topic: finding a mute wire, 2002 lexus gs 430

Posted By: calitech247
Subject: finding a mute wire, 2002 lexus gs 430
Date Posted: February 03, 2012 at 6:01 PM

Hello board,

I have a 2002 Lexus GS 430 with nav and the Mark Levinson surround system and having a hard time finding a wire diagram for the amp or the headunit. I need this diagram to figure out whether or not there is an amp turn on wire or a mute wire in order to install a Parrot hands-free system. Can I use a DMM somehow? Does anyone know where I can get software for audio wiring info for any make and model?

Thanks

Replies:

Posted By: i am an idiot
Date Posted: February 04, 2012 at 6:00 AM

Battery	BLUE / YELLOW	(+)	RADIO HARNESS
Accesory	GRAY	(+)	RADIO HARNESS
Ground	WHITE/ BLACK	(-)	RADIO HARNESS
Illumination	GREEN / WHITE	(+)	RADIO HARNESS
Power Antenna	RED / BLACK	(+)	RADIO HARNESS
Amp Turn On	BLACK/ ORANGE	(+)	RADIO HARNESS

techservices.audiovox.com It is free information, you just have to take a few minutes and set up the account.

Posted By: flobee4
Date Posted: February 04, 2012 at 9:04 AM

On Toyota and Lexus the mute wire is usually Pin 7 on the 20 Pin Plug. I usually test for power and ground to get my barring on the pin locations, then count out to 7 from Pin 1 which tests as battery. Which is Blue / YELLOW according to the above post. Pin 11 is directly below pin 1 which will test as an accessory, so make sure you are testing battery and accessory correctly. This way you end up at pin 7 not pin 17.

posted_image

Posted By: calitech247
Date Posted: February 04, 2012 at 9:50 PM

Sweet!

Thanks for the help posted_image

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