Radio colored wire diagram?

2003 LEXUS RX 300
210,000 MILES • V6 • 2WD • AUTOMATIC
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KUKUSONE
  • MEMBER
  • 1 POST
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 12:48 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,540 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.



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Jul 12, 2025 at 4:00 AM
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