Like many homeowners, you probably enjoy home theater, but you'd prefer not to have five speakers and a subwoofer on your living-room floor. Then consider in-wall speakers as a solution. The question is, can you install them yourself, or should you call a professional? The answer is, yes you can install in-walls yourself, with some planning, a few basic tools, and a little patience. Here's a step-by-step overview of the process of installing in-wall (or in-ceiling) speakers, as well as the parts and tools you'll need to complete the job like a pro.