2005 Lexus RX330 Car Stereo Installation Guide

Whether your an expert Lexus RX330 mobile electronics installer, Lexus RX330 fanatic, or a novice Lexus RX330 enthusiast with a 2005 Lexus RX330, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 2005 Lexus RX330 vehicles are becoming increasing more difficult to identify due to the installation of more advanced factory oem electronics.

One of the most time consuming tasks with installing an after market car stereo, car radio, satellite radio, xm radio, car speakers, tweeters, car subwoofer, crossovers, audio equalizer, car amplifier, mobile amp, car amplifier, mp3 player, ipod or any car audio electronics is identifying the correct color car audio wires for your 2005 Lexus RX330.

The Modified Life staff has taken all its Lexus RX330 car radio wiring diagrams, Lexus RX330 car audio wiring diagrams, Lexus RX330 car stereo wiring diagrams, Lexus RX330 car radio wiring schematics, Lexus RX330 car wiring diagrams and cataloged them online for use by our visitors for free. Our automotive wiring diagrams allow you to enjoy your new mobile electronics rather than spend countless hours trying to figure out which wires goes to which 2005 Lexus RX330 part or component.

Feel free to use any Lexus RX330 car stereo wiring diagram that is listed on Modified Life but keep in mind that all information here is provided “as is” without any warranty of any kind and most of the car audio wiring diagrams listed on our enthusiast website are submitted by the Modified Life community. Use of the Lexus RX330 wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 2005 Lexus RX330.


If you have any questions pertaining to the audio system in the 2005 Lexus RX330, please feel free to post it at the bottom of this page and either we’ll do our best to find you the information you need or hopefully someone in the Modified Life community will have the information you’re looking for.

Request a Car Stereo Wiring Diagram

If you can’t find a particular car audio wire diagram on Modified Life, please feel free to post a car radio wiring diagram request at the bottom of this page and we’ll do our best to find you the diagram or schematic you need for your mobile audio installation.

Adding More Information

If you would like to help the Modified Life community by adding any missing information or adding a new car audio wire diagram to our resource, please feel free to post it at the bottom of this page.

2005 Lexus RX330 Car Stereo Installation Guide

Car Radio Battery Constant 12v+ Wire: Blue/Black
Car Radio Accessory Switched 12v+ Wire: Gray
Car Radio Ground Wire: Brown
Car Radio Illumination Wire: Green
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: Orange
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: Amplifier is located under the passenger side rear seat.
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Brown
Left Front Speaker Negative Wire (-): Red/Yellow
Right Front Speaker Positive Wire (+): Violet
Right Front Speaker Negative Wire (-): Pink
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Red
Left Rear Speaker Negative Wire (-): Gray
Right Rear Speaker Positive Wire (+): Red/Yellow
Right Rear Speaker Negative Wire (-): Blue


  • Reply patrick April 18, 2011 at 9:58 am

    Hi there, i have a 2005 lexus rx330. i want to replace the front speakers. i know that they are simple 6×9– just a woofer cone. i want to replace them with 2-way speakers or 3-way 6×9 speakers. my question is, will i get the highs coming out of the new 6×9’s, or will the highs be filtered to the separate tweeter that comes standard in the lexus? do you have any details of the specs? maybe even amplifier specs?

  • Reply ian bradfield August 16, 2011 at 3:58 pm

    Do you have a 2005 lexus rx 400h stereo wiring guide? Thanks.

  • Reply ModifiedLife August 19, 2011 at 6:03 pm

    Ian, as much as we would like to help you, most of the car stereo wiring information listed on our website is provided by our visitors. We currently do not have any information on the 2005 Lexus RX400h stereo wiring but hopefully someone from our knowledgeable Modified Life community would be able to chime in and assist you.

  • Reply Renee January 1, 2012 at 3:17 am

    I have a 2005 Lexus RX330, and I just want to listen to something I downloaded on my iPhone from my car stereo or any type mp3 player. please Help.

  • Reply ModifiedLife January 3, 2012 at 5:55 pm

    Renee, most late model vehicles do not have aux input on the back of the factory car radio. You will need an automotive aux input adapter. This adapter will allow you to input any Apple iPod, portable music player or mp3 player into your factory car stereo. This is the easiest and most cost effective way to add an audio input into your factory car stereo. Here is the adapter you will need:

    Auxililary Input Adapter for 2005 Lexus RX330

    If you’ve never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Hope this helps. Good luck with your 2005 Lexus RX330 aux input adapter installation.

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