As you probably already know, the basic design of a speaker includes only two wires. While you might assume that you've got a 50/50 chance of getting the wiring right, you're only partially correct. There are so many other variables, (like speaker mounting, speaker placement and speaker selection), that the odds of you guessing your way through a complete install are pretty slim. Replacing the speakers in an audio system is probably one of the most noticable improvements you could make to your sound system, because most factory installed speakers are pretty bad. Some newer vehicles use large or non-standard sized radios which require a more involved install, but even these systems can benefit from upgraded speakers. Unfortunately, a lot of car stereo shops will charge a flat rate to install speakers, even when it is a simple, twenty minute job. You don't have to spend a fortune on speakers; a decent set of two-way speakers is a huge improvement over the cheap factory speakers...but you've got to install them right.  If you want to know how to correctly install speakers, or are in the market to buy new speakers and want some helpful, inside information, click the link below!