Some helpful links to gain a greater knowledge of car audio or to see what others are doing.


JL audio Tutorials JL audio offers a wide variety of tutorials on car audio and related topics.
AudioControl - Tech Papers Audio Control, the athority in quality signal processors, offers up a wealth of information on acoustics and Car Audio.
Basic Car Audio Electronics Guide to basic electronics and Car audio application of electronics.  (Highly recommended)
Sound Domain Free place to view installs, get ideas, and show off.
Mobile Toys Product Fit Guide A guide to what size speakers will fit in a particular vehicle.