Also, to get the power from your battery to the amplifier you will probably have to drill a hole in your firewall of your car. You may be able to poke the wire through a hole already there, but it is quite easy to drill a hole in the firewall. Here or anywhere you run wire through a hole in metal use a rubber grommet. This will prevent the jacket of the wire from being worn down from rubbing on the metal. I have a small hole in the passengers side footwell. The power cable for the amplifier runs through the hole, directly under the carpet, up through a hole in the carpet underneath the seat to the amplifier.