The following and circuit/schematic describes 1990 Lexus LS400 system. The /audio system consists of /player, subwoofer, speaker and amplifier, auto motor and relay, telephone transceiver and speaker relay, tweeter, CD changer.

lexus LS400 radio wiring diagram

Find more information about 1990 Lexus LS400 Circuit and here – free download PDF file. (source:

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