Focal IW TOY YISO – Toyota Head Unit Wiring Harness
Upgrade your Toyota's factory audio system with the Focal IW TOY YISO Toyota Head Unit Wiring Harness, designed to provide convenient Plug & Play integration with the Focal Impulse 4.320 Compact 4-Channel Amplifier.
This vehicle-specific harness connects to compatible Toyota factory head units, providing a simple and reliable solution for integrating an aftermarket amplifier without cutting or modifying the original vehicle wiring.
Featuring OEM-style connectors, the IW TOY YISO allows the original head unit to be retained while supporting improved speaker amplification and sound quality.
Designed for selected Toyota vehicles manufactured from 2005 onwards, this harness is ideal for compatible Focal Inside speaker and amplifier upgrades.
Key Features
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Toyota-specific Plug & Play head unit wiring harness
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Designed for Focal Impulse 4.320 amplifier integration
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Compatible with selected Toyota factory head units
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OEM-style connectors for reliable installation
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Retains compatible factory head unit functionality
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No soldering required in supported applications
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Provides connection to compatible Focal Inside wiring accessories
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Suitable for selected Toyota vehicles manufactured from 2005 onwards
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Supports clean and professional audio system upgrades
Technical Specifications
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Product Type: Head Unit Wiring Harness
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Model: IW TOY YISO
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Compatible Amplifier: Focal Impulse 4.320
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Vehicle Application: Selected Toyota factory audio systems
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Connection Type: Toyota Plug & Play / Y-ISO
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Manufacturer-Listed Cable Length: Approximately 300mm
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Installation: Vehicle-Specific Factory Head Unit Integration
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Quantity: 1 Harness
Important Compatibility Information
Not compatible with factory-amplified audio systems, including applicable premium JBL systems.
This harness is designed for selected non-amplified factory audio systems only.
Toyota head unit connectors vary between vehicle models, years and audio system configurations. Some vehicles require the alternative Focal IW TOYV2 YISO harness.
Additional Focal amplifier wiring, extension cables and power supply components may be required.
Please confirm your vehicle's model, year, factory head unit and audio system configuration before purchasing.
Sold individually. Amplifier and additional wiring accessories not included.
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Focal IW TOY YISO – Toyota Head Unit Wiring Harness
Let customers speak for us
Installed a false floor in my Prado 250 gxl 7 seater. Great fit. Easy to install myself. Looks factory fitted. Provides so much more room.
Better than I expected, amazing fit and look.
Paul from Pinjarra WA
Love it. Great quality product.
Fantastic product great quality and looks amazing in my 79 and I can hear my music now
Very happy with the new door trims they look fantastic. New speakers in the front doors sound so much better
Centre console for my Hdj79 came up so mint! Looks like it belongs there from factory besides how nice it is
Very happy with the console its a perfect fit and looks good wiring kit made things simle for me , I thoureouly recomend this product
Absolute master piece, fits so seamlessly. There’s honestly no other product that fits so well and has such quality workmanship. It’s a no brainer
Stoked with the outcome
The doti console is excellent it is a perfect fit and I finaly have somewhere comfortable to rest my arm when I’m driving it was well worth the exspence very happy.
The Prado Rear Seat Delete platform is very well built an I would highly recommend to others !
I have brought many products from this company over the years, mostly from third party suppliers like ARB or TJM & having them fitted by the same company
When it came time to build my new 79 series I already knew what I wanted & where I was going to purchase it
As always the quality of the product is faultless and fitment of my centre console, roof console , door trims & speaker pods was very simple
The improvement to the comfort of the car is extremely impressive & functional
Department of The Interior has remained at the top of the league with their products for the facelift series 79
Brilliant. It just fits! Easy to install. Beautiful finish. Skip the rest and get this.
Ordered the premium floor console with scan gauge for my 2024 troopy, excellent fit and build quality is top notch! Should’ve come like this from factory
Quality product. The front mounting doesn't line up easy enough. Hole needs to be in a different position
Exactly as described, fits and works perfectly