Get Upto $150 Discount On Kicker Amplifier At Bestbuy.com. Kick the vehicles audio system up a notch with this amp that is ideal for use with Kicker CompD and CompS subwoofers and CS speakers. Customize the sound easily with the adjustable KickEQ bass boost. This Kicker P-Series PK4 power kit includes 3 cables, a fuse holder and an accessory pack, so one can easily power the vehicles aftermarket amplifier. The silver-tinned, oxygen-free copper wires provide optimal performance.