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.. A wiring diagram specifically for vehicle electrical systems. This diagram provides detailed visual information on the electrical connections within the vehicle, featuring various components and their interconnections.
Here's a link to a website that lists all the diagrams for all LEXUS models and other makers and cars. Hope this helps other Owners in future. http://www.modifiedl.iring-diagrams/ EXAMPLE 1994 Lexus LS400 Car Stereo Wire Schematic Car Radio Battery Constant 12v+ Wire: Red Car Radio Accessory Sw.. LS - 1st and 2nd Gen (1990-2000) - Solved - Looking for readable wiring diagrams for 1993 LS400 - Hey! I am about to install an aftermarket radio (Sony CDX F-7700) and will attempt to get the factory sub to work with my setup.