This is probably the best page for subwoofer wiring configs i have found. http://www.crutchfield.com/learn/lea...rs_wiring.html
Having done alot of audio in the past, I would say this amp is pretty much worthless with a small exception for replacing the factory amp that runs the stock subs if you needed to. I wouldn't waste my time trying anything else with it. This statement from the sales website: "The red wire connects to the constant +12V wire in the radio harness. The vehicle's audio system fuse will protect the subwoofer amp." Pretty much says it draws next to no current so good luck getting any kind of power out of it.