KnuKonceptz Kolossus amp installation kit's feature our top of the line Kolossus Flex power and ground cables. Made up of ultra flexible pvc and ultra fine tinned strands of oxygen free copper (OFC) The KOL-AK4 amp kit provides 18 feet of blue power wire and 3 feet of black ground wire. The KnuKonceptz FH-44 fuse holder with a 120A fuse is provided within the KOL-AK4 amp install kit, but can be upgraded to a maximum of 150A fuse (sold separately). The fuse holder does not come installed within the cable, this allows the installer to place the inline fuse holder in an optimum location during installation. It also allows the installer to extend the power wire 1-3' by using the inline fuse holder to add cable to the main run (leaving the 18' as one unit and using the FH-44 to "splice" a few feet of wire) Signal for your 2 channel amplifier installation kit is carried by the Klarity Kable 5 Meter (16.25') RCA Cable. The Klarity RCA Cable is a copper braid shielded coaxial RCA that uses a Hybrid metal/molded RCA termination with strain relief for a durable, low loss connection to your head unit and amplifier. A separate remote turn on lead is included. This wire is connected to your radio's power antenna lead or amp turn on lead (refer to your head unit's manual) Your amplifier's output is sent through KnuKonceptz Kord 12 gauge speaker wire, 20 feet of 12 gauge blue speaker wire is included with the kit. Kit Includes -18 Feet 4 gauge Blue Kolossus Flex Power Wire -3 Feet 4 gauge Black Kolossus Flex Ground Wire -One waterproof inline fuse holder with 120A fuse -One 5 Meter Klarity Kable Black OFC RCA Cable -16 Foot Blue remote turn on lead -20 Feet Blue Kord Kable OFC 12 gauge speaker wire -2 gold plated 4 gauge ring terminals, 2 gold plated 4 gauge spade terminals -grommets wire loom and wire ties