A look at some of the criteria that go into the design of a car audio amplifier and how that affects how small they can be.
Tips for Getting More Bass in Your Car
Car amplifier power wire fuses
Car's Radio Not Working - AutoZone
How to Install a Car Amp (with Pictures) - wikiHow
Troubleshooting your car amplifier installation
Adrenaline Autosound
How to install an amp and sub in your car
Stop grounding amps to the closest bolt you can find
How To Set Crossover Frequencies For Your Car Audio System - Sound
My amp is getting power but my sub is still not working, any