We offer high quality expert service with flexible nationwide coverage backed with a lifetime labor warranty. Our Professional Installer will mount your subwoofer in an existing opening in your vehicle or customer provided subwoofer enclosure box, and wire to an existing amplifier. Powered or Amplified subwoofer is not included in this installation service, please purchase the Amplifier 2 channel or mono installation service for unit with those features. Some vehicles may require additional labor and/or parts due to the complexity of their wiring and accessing replacement products. Please note - this item is non-returnable after 90-days or if the installation was completed.