Radio colored wire diagram?

2003 LEXUS RX 300

210,000 MILES • V6 • 2WD • AUTOMATIC

KUKUSONE

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I need the color codes for the factory radio wires, to an aftermarket radio, and speakers. Connection straight to the factory and bypassing the amp.

Jul 11, 2025 at 7:48 PM

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STRAILER

AUTOMOTIVE REPAIR CONTRIBUTOR
54,178 POSTS

Hello,

Here are the wiring diagrams for the radio and speaker, I noticed there is a telephone ECU inline for the left door speaker which will need to be by passed as well. Check out the images (below). Let us know if you need anything else.

Images (Click to enlarge)

Jul 12, 2025 at 11:00 AM