{"product_id":"rockford-fosgate-rfk4-4-awg-power-installation-kit","title":"Rockford Fosgate RFK4 4 AWG Power Installation Kit","description":"\u003cp\u003eThe 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.\u003c\/p\u003e\u003cp\u003eDesigned for vehicle audio upgrades that call for 4 AWG connections, the RFK4 helps create an organized electrical path between the battery and amplifier. The kit includes a long red power cable for the battery-to-amplifier run and a shorter ground cable for a nearby chassis ground point. A blue remote wire is also included to provide amplifier turn-on control from a compatible source unit or interface.\u003c\/p\u003e\u003cp\u003eThis kit does not alter the sound character of a system directly, since it is not an audio-processing component. Instead, its role is to support dependable power delivery for an appropriately matched amplifier installation. The power-only format makes it useful for systems where RCA cables, speaker wire, distribution blocks, or other accessories are chosen separately.\u003c\/p\u003e\u003cp\u003eRockford Fosgate specifies full-spec cable that meets or exceeds AWG requirements, using 100% pure crystal-oxygen-free copper conductors. The 4 AWG cable has a 21.1 mm² conductor area and 1,862 strands. These construction details support a true 4 AWG wiring foundation rather than relying on undersized cable labeling.\u003c\/p\u003e\u003cp\u003eA MAXI fuse holder and 100-amp fuse are included to protect the main power run. Appropriate wire termination hardware is supplied for the installation. The RFK4 is a single-amplifier power kit, so it is a practical starting point for a compatible amplifier system that does not require a dual-amplifier distribution setup.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Spec 4 AWG Cable:\u003c\/strong\u003e Meets or exceeds AWG gauge requirements for amplifier power wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePC-OFC Conductors:\u003c\/strong\u003e Uses 100% pure crystal-oxygen-free copper cable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e21.1 mm² Conductor Area:\u003c\/strong\u003e Provides the specified cross-section for 4 AWG cable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100-Amp MAXI Protection:\u003c\/strong\u003e Includes a MAXI fuse holder and 100-amp fuse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower And Ground Cables:\u003c\/strong\u003e Includes 17 feet of power wire and 3 feet of ground wire.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTermination Hardware:\u003c\/strong\u003e Includes wire termination hardware for installation connections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe RFK4 uses red power cable, transparent-silver ground cable, and blue remote wire for easier circuit identification during installation. Its cable construction uses pure crystal-oxygen-free copper, while the supplied kit hardware is intended to complete the primary power connection. The power-only configuration omits RCA signal cable and speaker wire, allowing those items to be selected for the specific system.\u003c\/p\u003e\u003cp\u003eRoute the 17-foot power cable from the battery to the amplifier through a protected vehicle pass-through, and install the included fuse holder close to the battery on the positive cable. Use the 3-foot ground cable at a clean, secure vehicle chassis grounding point near the amplifier, and connect the remote lead to a compatible amplifier turn-on output. Confirm amplifier terminal acceptance, wire-length needs, fuse requirements, and safe vehicle routing before installation; professional installation is appropriate when vehicle electrical work is unfamiliar.\u003c\/p\u003e","brand":"Rockford Fosgate","offers":[{"title":"Default Title","offer_id":45644448825414,"sku":"RFK4","price":189.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/611ygqS2TYL.jpg?v=1784437268","url":"https:\/\/audiowatt.store\/products\/rockford-fosgate-rfk4-4-awg-power-installation-kit","provider":"Audio Watt Store","version":"1.0","type":"link"}