Red wire = power
Yellow wire = Accessory (so it knows when your car is turned on/off.
Black = Ground
Jumper is for the shutdown controller. If you want to put that on you have to open up the power supply and there is a place to put the jumper. With the jumper off it will shut down after 10 seconds (default).
Tip: if you have an Amp that is already wired to the battery, acc., ground, you can just tap into that.
There is a manual in PDF format that you can get. Search the forums for it. I know several people have posted a link to it. I just don't have time to look right now. Good luck!