Rockford Fosgate RFK4 4 AWG Power Installation Kit Shallow Mount Subwoofers controlled power to an upgraded

controlled power to an upgraded vehicle audio system

This makes it a practical choice for listeners replacing basic full-range speakers with a more focused component layout

5 mm² (20 AWG) speaker wire for the connection to the enclosure

JBL specifies the subwoofer for sealed

Rockford Fosgate RFK4 4 AWG Power Installation Kit Shallow Mount Subwoofers controlled power to an upgradedThe Rockford Fosgate RFK4 is a 4 AWG power installation kit for adding an aftermarket car audio amplifier. It provides the primary power, ground, remote turn on, fuse protection, and termination hardware needed to establish an amplifier power connection. This power only kit is intended for installers building a system with separately selected signal and speaker wiring. Designed for vehicle audio upgrades that call for 4 AWG connections, the RFK4 helps