Compare plans tailored to your car & budget. Upgrading or repairing your car stereo can range from a simple do-it-yourself (DIY) task to a substantial investment, depending on your needs. Whether ...

So I want to upgrade my 2004 Honda Civic SI stock sound system. The stock system has two front and two rear speakers. Let's say I replace these speakers with 3, or even 4-way speakers combined with a ...