i drive an 89 cutlass supreme.
as for the sub sonic thingy, i dont kno......
subs, amps, crossover, and cap is in the trunk.
i had a bandpass box with my jbls, before that a poorly build sealed box that my brother made. and the bandpass sounds better, i was amazed at how well the jbls sounds, it was more punky then n e thing, well depended on the song.
ohh yea, when u listen to the music, u can tell that all the sound comes from the back, bass treble, so i was thinking of buying a component set for the front, so i can even things out. shoudl i waste my time and money, or just leave it?