2004 Toyota Matrix base

The cover can come off, if you need a specific guide try a repair manual, autozone.com has an online version for most makes/models. Nearly all of the fasteners used to secure body panels can be found in any auto parts store, NAPA and Fastenal will have the most complete inventory short of the dealerships (I only mention this because you almost always break one or two trying to get something like a front clip or bumper cover off.