Just like BOGART661 said it should have screws on the front of the unit. You can get a piece of oak and router the edge and stain it to match the interior. Then cut out for your car stereo. The problem I ran into was getting enough power to run an amp and sub, the factory power wire is not large enough to handle the higher current. I use a home 2.1 home theater system (two speakers and sub) Such as a Bose 321 or Sony DAV-X1. This you don't have to deal with running wire for the surround speakers. The do have systems now with wireless surrounds.