Here's are thread about the truck, but it doesn't have any closeups of the receiver wiring. I used a 3-channel receiver. Ch1 was for steering, Ch2 was for the esc and brakes, and Ch3 was for reverse. I used a Y-harness for Ch2. The esc was set up without brakes, and whenever I pushed the trigger to brake, the esc would do nothing, but the brake servo would activate.
http://www.rc-monster.com/forum/showthread.php?t=8135