2006 Volvo S60

One of the most satisfying upgrades you can make to a simple system is the addition of a subwoofer. The low bass a subwoofer can provide will greatly enhance the musical experience in a car, even one with an otherwise factory system. We've used our Volvo S60 project car in a few articles already with the head unit and navigation screen installations. This month, we'll show you how to install a simple 10" subwoofer system in the trunk of the Volvo that won't take up any space. The technique we'll use for this sub system allows you to form odd-shaped subwoofer enclosures very quickly. Needless to say, we use it often. This month, we'll make the back of the enclosure and form the frame for the fiberglass on the front. Next time, we'll finish off the fiberglass and add the finishing touches to integrate this enclosure cleanly into our Volvo. As always, send any questions to sbrown@alpine-usa.com and check out SteveBrownUniversity.com for more hands-on opportunities.