Focal Inside Nissan Y-ISO T-Harness for Impulse 4.320 4 Channel Car Amplifier
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The Focal Inside Nissan Y-ISO T-Harness is a 1m plug-and-play wiring loom that connects the Focal Impulse 4.320 4-channel amplifier directly to the factory head unit in select Nissan vehicles (2009 onwards) without a factory amplifier. It is part of the Focal Inside vehicle-specific installation range.
Key specifications
- Type: Y-ISO T-harness adapter, Focal Inside
- Compatible vehicles: Nissan 2009 onwards (select vehicles without a factory amplifier)
- Compatible amplifiers: Impulse 4.320, FIT 9.660
- Cable length: 1m
- Connection: ISO connectors, no soldering required
- Installation: plug and play
T-harness adapter for select Nissan vehicles without a factory amp
This harness plugs directly between the Focal Impulse 4.320 4-channel amplifier and the factory head unit. No cutting or soldering is needed — it uses standard ISO connectors for a clean, reversible fit in compatible Nissan vehicles from 2009 onwards.
Inside upgrade harness
- Designed specifically for compatible Nissan vehicles
- Plug and play installation — no modifications to existing wiring
- Direct link from the amplifier to the original head unit
Additional cables and connectors you may need
- Extension cable to connect the T-harness to the amplifier: IW-IMP-EXT150 — see the Focal Inside IMP Extension Cable I/O 150
- Harness to connect the T-harness to the amplifier and subwoofer(s): IW-IMP-2.2 and IW-IMP-2.1 Harness (see the 2.2 IMP Harness and 2.1 IMP Harness)
A Volkswagen version of this harness is also available — see the Focal Inside VW Y-ISO T-Harness for the Impulse 4.320. Check your vehicle compatibility by contacting us or visiting the Focal Inside website.
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Specification
| Length | 1m (3.3ft) |
|---|---|
More specs
| |
What's Included
- Focal Nissan Y-ISO Harness
Focal
About the Focal IW-NIS-YISO
From our tech experts at CEN
A Focal Inside wiring harness, connecting a direct-fit system to the vehicle’s own wiring without cutting into the factory loom.
Who it suits
Owners fitting a Focal Inside system who want the work reversible and the car returnable to standard.
Our tech experts advise
Harnesses are specific to vehicle, year and which factory audio system the car was built with, and the wrong one simply will not work. We confirm against your exact vehicle before ordering — get in touch. See car audio installation.
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Frequently Asked Questions
Q: Does the Nissan Y-ISO harness work in cars with a factory amplifier?
A: No. It is a T-harness for Nissan vehicles without a factory amplifier, linking the original head unit to the amplifier.
Q: Which amplifiers does the Nissan Y-ISO harness work with?
A: It is listed as compatible with the Focal Impulse 4.320 and FIT 9.660 amplifiers.
Q: Do I need to solder anything?
A: No. It connects to the extension cable via ISO connectors, so no soldering is required.
