A: You will need a small amplifier with a low pass crossover in order to install it properly. If the tube contains an internal amplifier, than you simply install it like you would install an amplifier. Provide power from the battery, a switched electrical source (typically from behind the radio) and a ground. For signal, you will need to tap into the rear speaker leads in the vehicle and utilize the high level inputs provided on the amplifier / tube. If it does not have a high level input, you...
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