check all your connections. the power should run from the battery to an inline fuse, then to the power input on your amp. the ground should run from the ground input to a clean, non painted, non rusted area of the chasis. the remote runs from the output of your radio to the input of your amp. then rca's run from the output of your radio to the input on your amp. make sure all the fuses are good ( on the amp, in the fuse panel of the vehicle, and on the power wire) make sure all your connections are tight and clean, also, you can check to see if the speaker wire inside the box leading to the sub is connected. if the power light on the amp is not coming on, it is either a bad wire connection, missing a wire connection, or a bad amp.