Maintain built in steering wheel controls on any Toyota 2009- 2011.
**IF YOUR RADIO DOSN'T HAVE A "SWC GROUND" WIRE** - make one (connect a new wire from plug 6 to any grounding point)
Most cars are the same, may need to look up your specific vehicle's wiring diagram.
Link for Toyota SWC Diagram:
[ Ссылка ]
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