my amp has power, and it has input. When I splice the 2002 Sentra's Factory Sub into the amp, the amp begins to smoke. What happend, how do I avoid this, and how do I do it right?
A low impedance typically does not cause an amp to smoke right away, rather it causes it to get extremely hot and go into thermal protection. It sounds more likely that you fried a capacitor or a resistor of somesort.
Woops, I should have posted this earlier. I gave up too easily, and I figured out what the problem was, I fixed it, and it works with no problems whatsoever.