I'm looking at installing a subwoofer in the boot to provide a bit of thump to the weedy factory fitted business stereo. I don't have NAV or DSP either so don't think I have an amp in the boot.
Has anyone done this and if so what did you use, bass box, tube etc? What power of amp ?
Also where did you tap the line input from? - speakers in the back doors?
What about 12v power?