Full installation kit to add a 4-channel amp, subwoofer and sub amp (not included) Includes (1) vehicle-specific fuse holder bracket with (2) MANL T-Spec® fuse blocks Cut-to-length braided 4AWG T-Spec® V10 fully tinned marine-grade power and ground cables Cut-to-length 4-channel T-Spec® V10 RCAs, remote wire, and 4-channel speaker wire Cut-to-length 2-channel T-Spec® V10 RCAs, remote wire, and 12AWG speaker wire Includes factory radio T-harness to retain the use of factory speaker wires Includes (2) under-the-seat black powder-coated amp racks Includes all necessary mounting and installation hardware 3 year limited warranty Not compatible with factory-amplified vehicles Designed for use in aftermarket radio installations using small form-factor amplifiers only