Our comprehensive 1993 Lexus LS400 radio wiring diagram shows all the radio wire harness colors, speaker wire colors, and speaker sizes. Use this head unit pinout guide to help with your car stereo installation or to troubleshoot radio wiring issues in your 1993 Lexus LS400.. Detailed repair manual for the 1993 Lexus LS 400 V8-4.0L (1UZ-FE).
1993 Lexus LS400 Stereo Wiring Information Radio Battery Constant 12v+ Wire: Red Radio Accessory Switched 12v+ Wire: Gray Radio Ground Wire: Brown Radio Illumination Wire: Green Stereo Power Antenna Trigger Wire: Black/Red Stereo Amp Turn-On Trigger Wire: Pink/Blue Left Front Speaker Positive Wire (+): Green Right Front Speaker Positive Wire (+): Red Left Rear Speaker Positive Wire (+): White.. Wirediagram.com makes no representation or warranty with respect to the above information including its accuracy, completeness, or its freedom from third parties' proprietary rights. Wirediagram.com disclaims all liability or responsibility for errors or omissions therein or any decision made by the recipient in reliance thereon. The installer must verify any circuitry with the proper test.