The name of the game is hits and to get more hits you need to have as many links out there as possible, so if you link me I will link you. These pages are not neccesarily reccomended by me although most of them are worth checking out - all I ask to link you is that your page is car audio based. I also have a page of links for performance cars.
Another guy called Mike's Car Audio Page
Richard Treadwell's Car Audio Page
Scott Gausdon's CB and Car Audio Page ( New Zealander also )