Rockford Fosgate RFI-3 3-Foot Twisted Pair RCA Cable

The Rockford Fosgate RFI-3 is a 3-foot, two-channel RCA signal cable for connecting compatible car-audio components. It is designed for short signal runs between RCA-equipped sources, processors, and amplifiers. The twisted-pair construction helps address unwanted noise that can enter low-level audio connections.

This cable is suited to installers and enthusiasts building or updating a vehicle audio system with RCA preamp outputs. Its compact 3-foot length works well when components are mounted close together, such as an amplifier and signal processor in the same installation area. It provides a dedicated left/right interconnect path rather than a speaker-wire or power-wire connection.

The RFI-3 is built to transfer stereo audio signals while helping reject radio-frequency and electromagnetic interference. Its twisted conductors alternate the positive and negative paths to support noise cancellation along the cable run. This makes it a practical choice where clean routing and secure RCA connections matter.

Oxygen-free copper conductors and platinum-plated cable ends are used for corrosion resistance. The RCA plugs use split center pins intended to maintain a secure connection at compatible jacks. A frosted outer shield adds protection while retaining flexibility for routing.

Use the RFI-3 as part of a system that has standard RCA audio connections at both ends. It can link a head unit or signal processor to an amplifier when the required cable path is about 3 feet. For longer runs or additional channels, select a cable length and channel configuration appropriate to the system layout.

Key Features

• Twisted-Pair Construction: Helps reject interference along the audio signal path.
• Two-Channel RCA Design: Carries left and right low-level audio signals.
• 3-Foot Length: Suits short component-to-component installation runs.
• OFC Conductors: Oxygen-free copper construction supports corrosion resistance.
• Split Center Pins: Designed for a secure RCA jack connection.
• Frosted Outer Shield: Adds durability and routing flexibility.

Design & Installation

The RFI-3 uses twisted-pair conductors, oxygen-free copper, platinum-plated ends, and a frosted outer shield. Its gray cable finish and compact length make it suitable for tidy short-run installations. The split-pin RCA connectors are designed to fit securely in compatible RCA input and output jacks.

Confirm that both components use standard RCA audio connections and measure the routing path before installation. Route the cable carefully to avoid pinch points and keep it separated from power wiring where practical. This model is intended for a short 3-foot stereo signal connection, so longer routes may require a longer compatible RCA cable.