Simplify your vehicle’s audio upgrade with the Focal IW IMP 2.1 Plug & Play Amplifier Harness, designed for seamless integration with the Focal Impulse 4.320 Compact 4-Channel Amplifier.

This dedicated wiring harness provides a convenient connection between your vehicle’s compatible factory audio system and the Focal amplifier, allowing for improved sound performance while retaining the original wiring wherever possible.

Featuring high-quality connectors and twisted-core wiring to minimise electrical interference, the IW IMP 2.1 delivers reliable signal transmission and a clean, professional installation.

Designed for compatible factory head units, the harness supports a front speaker and subwoofer amplification configuration, making it ideal for selected Focal Inside audio upgrades.

Key Features

• Plug & Play amplifier integration harness

• Designed for Focal Impulse 4.320 amplifier

• Supports front speaker and subwoofer amplification

• Compatible with selected factory audio systems

• Factory-style connectors for reliable connections

• Twisted-core wiring to reduce electrical interference

• Simplifies aftermarket amplifier installation

• Helps retain original vehicle wiring

• No soldering required in compatible applications

• Suitable for selected Focal Inside audio upgrades

Product Information

• Product Type: Amplifier Wiring Harness

• Model: IW IMP 2.1

• Compatible Amplifier: Focal Impulse 4.320

• Application: Factory Audio System Integration

• Configuration: Front Speaker and Subwoofer Amplification

• Connection Type: Plug & Play, where compatible

• Quantity: 1 Harness

Important Compatibility Information

Not compatible with factory-amplified audio systems.

Vehicle-specific connection harnesses and additional installation accessories may be required. Please confirm compatibility with your vehicle’s head unit and existing sound system before purchasing.

Sold individually. Amplifier not included.