Originally Posted by el_duderino

QS, read his question. "Where do the wires go?"

That's not the question you were asking. If he's asking for an amplifier installation manual, I can write one (in fact, I have), but I'd rather not if that's not what he needs.

If installing a SUB amp in a non-DSP system that has no rear subwoofers, and the amp has speaker level inputs (NONE of which I know about this guy's system, BTW) then I would go to the OEM amp and find the F speaker wires and tap into them.

If the amp doesn't have speaker level inputs then I would use an LOC like the Soundgate LOCHVA. You can tap the preamp wires between the HU and the amp, but I don't think it's worth it for just a bass amp.

For power and ground i'd go straight to the battery. You can also find a remote wire at the OEM amp if you have a voltmeter.

I would find the F speaker wires by using a voltmeter and fading all the way forward and finding the wires that still have voltage, but lose voltage when faded rearwards, and that are speaker and not preamp wires. If you want colors, they're around here somewhere.