trailer wiring

2004 Ram 1500 quad cab. Factory wired with a flat four. I bought 7 way round that plugged in to the 4 flat. How do I wire the brake control wire and the hot wire for power. Any help would be greatly appreciated.

Here is a diagram of the 7 wire connector and what each terminal is for. Hope it helps
http://dodgeram.info/tsb/1996/08-33-96.htm